

The profile of Ahmed and their contact details have been verified by our experts
Ahmed
- Rate 20 US$
- Response 1h

20 US$/hr
1st lesson free
- Maths
- Algebra
- Geometry
- Science
- Algorithms
Master’s in Mechanical Engineering with 20+ years of experience. I teach Math, Algebra, Geometry, and Calculus with real-world clarity. Patient, structured, and results-focused lessons.
- Maths
- Algebra
- Geometry
- Science
- Algorithms
Lesson location
About Ahmed
ChatGPT
You said:
I am a 50 years old mechanical engineer, I am good at math and handy work, I am not good at marketing or social connections. How can I increase my income? What king of side jobs do you recommend?
ChatGPT said:
That’s a great, thoughtful question — and you’re already ahead by knowing your strengths and weaknesses clearly.
Let’s build on your profile:
50 years old → you have maturity, experience, reliability.
Mechanical engineer → strong analytical, problem-solving, and technical skills.
Good at math and handy work → you can both think and build.
Not good at marketing or social connections → you’ll thrive in work that doesn’t require much selling or networking.
Step 1: Identify What You Can Monetize
You want income sources that leverage your technical and practical skills — not your marketing ability. Here are some viable paths:
1. Technical Freelancing (Low social interaction)
Examples:
CAD design (SolidWorks, AutoCAD, Fusion 360) on platforms like Upwork, Freelancer, or Fiverr.
Product prototyping and 3D modeling.
Engineering calculations, tolerance analysis, or technical documentation for small manufacturers or inventors.
Why it fits: You work independently, online, project-based, and can charge hourly or per project.
2. Consulting / Contract Engineering
Many small firms can’t afford full-time engineers — but need help occasionally with:
Machine design improvements
Maintenance optimization
Equipment efficiency projects
Energy audits or cost-saving recommendations
You can position yourself as a part-time consultant charging by the hour.
If you don’t want to “market” yourself, partner with a platform or agency (like Toptal, Catalant, or (concealed information) that connects engineers with clients.
3. Design-to-Prototype Service
Use your handy skills to help inventors or small entrepreneurs build or prototype mechanical products.
You can:
Offer 3D printing, small machining, or mechanical assembly services.
Build from CAD files or help optimize them for manufacturability.
This can start in your garage or small workshop, and you can list on Etsy (for niche tools), eBay, or local classifieds.
4. Teaching or Tutoring (Online or Local)
Use your math and engineering background to tutor:
High school or college students (math, physics, engineering)
Or create short online video lessons (YouTube, Udemy, or Teachable)
Once created, digital courses can generate passive income.
Example: “Practical Engineering Math for Beginners” or “Understanding Gears and Motion.”
5. Technical Writing / Documentation
Write manuals, repair guides, or product assembly instructions for companies or websites.
You can find this kind of work on Upwork or TechnicalWritingJobs.com.
It fits analytical minds who like clarity and structure — minimal marketing required.
6. Maintenance / Repair Services (Local)
Small factories, schools, and local businesses always need:
Equipment repairs
Preventive maintenance plans
Custom tools or fixtures
You can offer services part-time, with word-of-mouth referrals rather than heavy marketing.
7. Invent and License
Use your engineering creativity to develop a small, practical tool or device that solves a common mechanical or household problem.
You can:
Patent and license it (royalty income)
Or prototype and sell small batches online
Example: magnetic tool holders, shop jigs, or problem-solving gadgets.
Step 2: Start Small and Scalable
Pick one or two paths and test them with minimal risk.
For example:
Spend weekends designing small projects on Upwork.
Tutor one student online for extra cash.
Build one small tool or jig and sell it on Etsy.
When something gains traction, scale it up.
Step 3: If You Want Stability
If you prefer steady side income with low risk:
Adjunct teaching (community college engineering, drafting, or math)
Contract inspection / quality control work (manufacturing, HVAC, or utilities)
Remote part-time design support for startups or product firms
️ Summary
Skill Possible Side Job Effort Income Potential
CAD / Design Freelance design, prototyping Medium $25–$100/hr
Math / Engineering Tutoring, online courses Low–Medium $30–$80/hr or passive
Hands-on work Repair / fabrication / small tools Medium $500–$2000/mo
Writing Technical documentation Low $25–$60/hr
Innovation Product invention / licensing High (long-term) Variable / royalties
Would you like me to suggest a short-term plan (first 3 months) to start generating side income without marketing?
I can tailor it to your available time (e.g., evenings vs weekends).
You said:
Yes. Available te is evenings and weekends
ChatGPT said:
Perfect — evenings and weekends give you enough time for a meaningful side income if you plan it smartly.
Let’s build you a 3-month action plan that fits your background (mechanical engineer, math-strong, handy, low-marketing).
️ OVERVIEW
Goal: Build 1–2 solid income streams using your existing skills.
Available time: ~10–15 hours/week (evenings + weekends).
Approach: Combine a quick cash flow skill (like tutoring or freelance work) with a longer-term scalable project (like product design or online course).
️ MONTH 1 — “FOUNDATION & QUICK CASH”
Objective: Start earning something small and test what fits you best.
Step 1: Freelance Setup (Low Marketing)
Create profiles on:
Upwork and Freelancer.com
Category: “Mechanical Design / CAD / Product Engineering”
Upload samples: a few mechanical designs or projects (even from past work, with confidential details removed).
Start bidding on small jobs ($100–$500 range):
e.g. “design a small bracket,” “calculate torque,” “CAD drawing for 3D printing.”
Tip: Focus on fast turnaround jobs and great communication; ratings matter more than volume at first.
Step 2: Start Tutoring Math/Engineering
Sign up at:
Wyzant, Tutor.com, or Superprof
Subjects: High school math, algebra, physics, intro mechanics
Even 2–3 students per week at $40/hour = $320–$480/month.
Minimal marketing—platforms bring students to you.
Step 3: Pick a “Build Project”
Choose one hands-on or digital product idea to develop (e.g., a simple mechanical tool, a 3D printable jig, or an educational course idea).
Don’t start building yet—just brainstorm and sketch.
️ MONTH 2 — “BUILD & TEST”
Objective: Establish a recurring income stream and prototype your idea.
Step 1: Improve Offerings
Take feedback from first tutoring/freelance jobs and refine your niche:
Best at CAD → focus on design gigs.
Best at explaining → expand tutoring hours.
Increase rate modestly once you have 2–3 positive reviews.
Step 2: Prototype or Record
If you’re handy:
Build your small tool or jig prototype (budget $100 max).
Test usability and cost of materials.
If you’re teaching-oriented:
Record 3–5 short videos (10 min each) for a course like “Applied Math for Engineers” or “Mechanical Design Basics”.
Use Udemy or Teachable (free to start).
Step 3: Track Your Hours & Earnings
Keep a log of where time and income come from.
After 4–6 weeks you’ll know which path gives best return for effort.
️ MONTH 3 — “EXPAND & AUTOMATE”
Objective: Turn what works into a repeatable system.
If Tutoring Works
Create structured lesson plans and reuse them (saves time).
Add a second platform (like Preply or Cambly).
Consider weekend group sessions (3 students × $25/hr = $75/hr).
If Freelancing Works
Build a small portfolio website (one-page site via Wix or Notion).
Offer a standard package like:
“3D Model + Drawing + PDF — $150, 3-day delivery”
Reuse templates to increase hourly efficiency.
If Product or Course Works
Launch small batch of your prototype on Etsy or eBay, or publish your first course.
Gather feedback and reinvest small earnings into better tools or ads.
EXPECTED OUTCOMES (By End of Month 3)
Stream Time (hrs/week) Monthly Income Estimate
Tutoring 4–6 $400–$800
Freelance CAD 4–6 $300–$1,000
Product/Course 2–4 $0–$300 (early stage)
Total Potential 10–15 $700–$2,000/month
Tools That’ll Help
Fusion 360 / FreeCAD – 3D design & rendering
Notion / Google Sheets – track projects & time
OBS Studio – record lessons
Etsy / eBay – sell small tools or digital files
Canva / Snipboard – make clean visuals for your listings
Would you like me to tailor this plan more specifically to one direction (like “CAD design & prototyping” or “tutoring & teaching”) — so I can show the exact weekly steps and tools you’d need?
You said:
Create a 3 lines ad to put in superprof for my services as a tutor, I have masters degree in mechanical engineering and teach math, algebra, calculus, geometry
ChatGPT said:
Sure — here are three short, effective options you can post on Superprof (each within their typical word limit):
Option 1 – Professional & Clear
Master’s in Mechanical Engineering with 20+ years of experience. I teach Math, Algebra, Geometry, and Calculus with real-world clarity. Patient, structured, and results-focused lessons.
Option 2 – Engaging & Student-Focused
Engineer with a Master’s degree helping students truly understand math — not just memorize it. Learn Algebra, Geometry, and Calculus through practical, easy methods.
Option 3 – Short & Direct
Mechanical Engineer (M.S.) offering expert tutoring in Math, Algebra, Geometry, and Calculus. Clear explanations and personalized guidance for every level.
Would you like me to adapt one of these specifically for high school students or college students (so it connects better with your target audience)?
You said:
Create a short paragraph to convince future student why they need my help as a tutor, if it is a good idea you can add that I have two kids in high school junior that I have been teaching them math, algebra, geometry and pre calculus
ChatGPT said:
Here’s a strong, natural-sounding paragraph you can use on Superprof:
I’m a mechanical engineer with a master’s degree and a passion for making math clear and practical. As a father of two high school juniors, I’ve spent years helping them master Algebra, Geometry, and Pre-Calculus — learning how to explain complex ideas in simple, real-world ways. Whether you’re struggling to catch up or want to excel, I’ll help you understand why math works, not just how to do it, so you can build real confidence and lasting skills.
Would you like me to make a shorter, punchier version (about 2 sentences) that fits the top section of your Superprof profile?
You said:
Yes
ChatGPT said:
Here’s a shorter, more attention-grabbing version perfect for the top of your Superprof profile:
I’m a mechanical engineer with a master’s degree and a father of two high school juniors, so I know how to make math click. I help students truly understand Algebra, Geometry, and Pre-Calculus — not just memorize formulas.
Would you like me to make a slightly more formal version (for parents seeking a serious, professional tutor) or keep this friendly and relatable tone?
You said:
Make it more detailed, include these points
Your teaching method and techniques
- A typical lesson plan
- What sets you apart as a tutor
- Who the lessons are for (degree, level, class, specificities, etc.)
ChatGPT said:
Excellent — here’s a well-rounded Superprof “About” paragraph that includes your teaching method, lesson structure, what makes you different, and who your lessons are for:
I’m a mechanical engineer with a master’s degree and a father of two high school juniors, so I understand both the academic and practical sides of learning math. I teach Algebra, Geometry, Pre-Calculus, and Calculus to middle school, high school, and early college students. My lessons focus on understanding concepts through real-world examples, step-by-step problem solving, and building confidence rather than memorizing formulas. A typical session begins with reviewing key ideas, followed by guided practice and real applications to reinforce learning. What sets me apart is my ability to explain complex problems in simple, logical ways drawn from my engineering experience and years of helping my own kids succeed in advanced math. My goal is to help every student truly understand math and develop lasting problem-solving skills.
Would you like me to make a slightly shorter version (about half this length) for Superprof’s limited “Description” field while keeping all the key points?
You said:
Put a 40 min word paragraph about my self and my credentials, use masters degree in mechanical engineering, 20+ years of engineering experience, patient, detail oriented, and add whatever make a good tutor
ChatGPT said:
Here’s a polished Superprof profile paragraph (about 140 words) that presents you professionally and warmly — ideal for the “About Me” section:
I hold a Master’s degree in Mechanical Engineering and bring over 20 years of real-world engineering experience to my teaching. My background has given me a deep understanding of how math and problem-solving apply to everyday technology and design, which I use to make lessons engaging and practical. I’m a patient and detail-oriented tutor who believes every student can master math with the right guidance and clear explanations. My approach focuses on understanding concepts, not just memorizing steps — helping students build lasting confidence and analytical thinking. Whether you’re in middle school, high school, or college, I adapt each lesson to your pace and learning style. Having helped my own high school-age children excel in Algebra, Geometry, and Pre-Calculus, I know how to explain challenging topics in a simple, encouraging way that makes learning math less stressful and more rewarding.
About the lesson
- Primary school
- Junior high school
- SHS 1
- +9
levels :
Primary school
Junior high school
SHS 1
SHS 2
SHS 3
BTS
University education
Adult Education
Master's degree
Doctor of philosophy
MBA
Pre school
- English
All languages in which the lesson is available :
English
ChatGPT
You said:
I am a 50 years old mechanical engineer, I am good at math and handy work, I am not good at marketing or social connections. How can I increase my income? What king of side jobs do you recommend?
ChatGPT said:
That’s a great, thoughtful question — and you’re already ahead by knowing your strengths and weaknesses clearly.
Let’s build on your profile:
50 years old → you have maturity, experience, reliability.
Mechanical engineer → strong analytical, problem-solving, and technical skills.
Good at math and handy work → you can both think and build.
Not good at marketing or social connections → you’ll thrive in work that doesn’t require much selling or networking.
Step 1: Identify What You Can Monetize
You want income sources that leverage your technical and practical skills — not your marketing ability. Here are some viable paths:
1. Technical Freelancing (Low social interaction)
Examples:
CAD design (SolidWorks, AutoCAD, Fusion 360) on platforms like Upwork, Freelancer, or Fiverr.
Product prototyping and 3D modeling.
Engineering calculations, tolerance analysis, or technical documentation for small manufacturers or inventors.
Why it fits: You work independently, online, project-based, and can charge hourly or per project.
2. Consulting / Contract Engineering
Many small firms can’t afford full-time engineers — but need help occasionally with:
Machine design improvements
Maintenance optimization
Equipment efficiency projects
Energy audits or cost-saving recommendations
You can position yourself as a part-time consultant charging by the hour.
If you don’t want to “market” yourself, partner with a platform or agency (like Toptal, Catalant, or (concealed information) that connects engineers with clients.
3. Design-to-Prototype Service
Use your handy skills to help inventors or small entrepreneurs build or prototype mechanical products.
You can:
Offer 3D printing, small machining, or mechanical assembly services.
Build from CAD files or help optimize them for manufacturability.
This can start in your garage or small workshop, and you can list on Etsy (for niche tools), eBay, or local classifieds.
4. Teaching or Tutoring (Online or Local)
Use your math and engineering background to tutor:
High school or college students (math, physics, engineering)
Or create short online video lessons (YouTube, Udemy, or Teachable)
Once created, digital courses can generate passive income.
Example: “Practical Engineering Math for Beginners” or “Understanding Gears and Motion.”
5. Technical Writing / Documentation
Write manuals, repair guides, or product assembly instructions for companies or websites.
You can find this kind of work on Upwork or TechnicalWritingJobs.com.
It fits analytical minds who like clarity and structure — minimal marketing required.
6. Maintenance / Repair Services (Local)
Small factories, schools, and local businesses always need:
Equipment repairs
Preventive maintenance plans
Custom tools or fixtures
You can offer services part-time, with word-of-mouth referrals rather than heavy marketing.
7. Invent and License
Use your engineering creativity to develop a small, practical tool or device that solves a common mechanical or household problem.
You can:
Patent and license it (royalty income)
Or prototype and sell small batches online
Example: magnetic tool holders, shop jigs, or problem-solving gadgets.
Step 2: Start Small and Scalable
Pick one or two paths and test them with minimal risk.
For example:
Spend weekends designing small projects on Upwork.
Tutor one student online for extra cash.
Build one small tool or jig and sell it on Etsy.
When something gains traction, scale it up.
Step 3: If You Want Stability
If you prefer steady side income with low risk:
Adjunct teaching (community college engineering, drafting, or math)
Contract inspection / quality control work (manufacturing, HVAC, or utilities)
Remote part-time design support for startups or product firms
️ Summary
Skill Possible Side Job Effort Income Potential
CAD / Design Freelance design, prototyping Medium $25–$100/hr
Math / Engineering Tutoring, online courses Low–Medium $30–$80/hr or passive
Hands-on work Repair / fabrication / small tools Medium $500–$2000/mo
Writing Technical documentation Low $25–$60/hr
Innovation Product invention / licensing High (long-term) Variable / royalties
Would you like me to suggest a short-term plan (first 3 months) to start generating side income without marketing?
I can tailor it to your available time (e.g., evenings vs weekends).
You said:
Yes. Available te is evenings and weekends
ChatGPT said:
Perfect — evenings and weekends give you enough time for a meaningful side income if you plan it smartly.
Let’s build you a 3-month action plan that fits your background (mechanical engineer, math-strong, handy, low-marketing).
️ OVERVIEW
Goal: Build 1–2 solid income streams using your existing skills.
Available time: ~10–15 hours/week (evenings + weekends).
Approach: Combine a quick cash flow skill (like tutoring or freelance work) with a longer-term scalable project (like product design or online course).
️ MONTH 1 — “FOUNDATION & QUICK CASH”
Objective: Start earning something small and test what fits you best.
Step 1: Freelance Setup (Low Marketing)
Create profiles on:
Upwork and Freelancer.com
Category: “Mechanical Design / CAD / Product Engineering”
Upload samples: a few mechanical designs or projects (even from past work, with confidential details removed).
Start bidding on small jobs ($100–$500 range):
e.g. “design a small bracket,” “calculate torque,” “CAD drawing for 3D printing.”
Tip: Focus on fast turnaround jobs and great communication; ratings matter more than volume at first.
Step 2: Start Tutoring Math/Engineering
Sign up at:
Wyzant, Tutor.com, or Superprof
Subjects: High school math, algebra, physics, intro mechanics
Even 2–3 students per week at $40/hour = $320–$480/month.
Minimal marketing—platforms bring students to you.
Step 3: Pick a “Build Project”
Choose one hands-on or digital product idea to develop (e.g., a simple mechanical tool, a 3D printable jig, or an educational course idea).
Don’t start building yet—just brainstorm and sketch.
️ MONTH 2 — “BUILD & TEST”
Objective: Establish a recurring income stream and prototype your idea.
Step 1: Improve Offerings
Take feedback from first tutoring/freelance jobs and refine your niche:
Best at CAD → focus on design gigs.
Best at explaining → expand tutoring hours.
Increase rate modestly once you have 2–3 positive reviews.
Step 2: Prototype or Record
If you’re handy:
Build your small tool or jig prototype (budget $100 max).
Test usability and cost of materials.
If you’re teaching-oriented:
Record 3–5 short videos (10 min each) for a course like “Applied Math for Engineers” or “Mechanical Design Basics”.
Use Udemy or Teachable (free to start).
Step 3: Track Your Hours & Earnings
Keep a log of where time and income come from.
After 4–6 weeks you’ll know which path gives best return for effort.
️ MONTH 3 — “EXPAND & AUTOMATE”
Objective: Turn what works into a repeatable system.
If Tutoring Works
Create structured lesson plans and reuse them (saves time).
Add a second platform (like Preply or Cambly).
Consider weekend group sessions (3 students × $25/hr = $75/hr).
If Freelancing Works
Build a small portfolio website (one-page site via Wix or Notion).
Offer a standard package like:
“3D Model + Drawing + PDF — $150, 3-day delivery”
Reuse templates to increase hourly efficiency.
If Product or Course Works
Launch small batch of your prototype on Etsy or eBay, or publish your first course.
Gather feedback and reinvest small earnings into better tools or ads.
EXPECTED OUTCOMES (By End of Month 3)
Stream Time (hrs/week) Monthly Income Estimate
Tutoring 4–6 $400–$800
Freelance CAD 4–6 $300–$1,000
Product/Course 2–4 $0–$300 (early stage)
Total Potential 10–15 $700–$2,000/month
Tools That’ll Help
Fusion 360 / FreeCAD – 3D design & rendering
Notion / Google Sheets – track projects & time
OBS Studio – record lessons
Etsy / eBay – sell small tools or digital files
Canva / Snipboard – make clean visuals for your listings
Would you like me to tailor this plan more specifically to one direction (like “CAD design & prototyping” or “tutoring & teaching”) — so I can show the exact weekly steps and tools you’d need?
You said:
Create a 3 lines ad to put in superprof for my services as a tutor, I have masters degree in mechanical engineering and teach math, algebra, calculus, geometry
ChatGPT said:
Sure — here are three short, effective options you can post on Superprof (each within their typical word limit):
Option 1 – Professional & Clear
Master’s in Mechanical Engineering with 20+ years of experience. I teach Math, Algebra, Geometry, and Calculus with real-world clarity. Patient, structured, and results-focused lessons.
Option 2 – Engaging & Student-Focused
Engineer with a Master’s degree helping students truly understand math — not just memorize it. Learn Algebra, Geometry, and Calculus through practical, easy methods.
Option 3 – Short & Direct
Mechanical Engineer (M.S.) offering expert tutoring in Math, Algebra, Geometry, and Calculus. Clear explanations and personalized guidance for every level.
Would you like me to adapt one of these specifically for high school students or college students (so it connects better with your target audience)?
You said:
Create a short paragraph to convince future student why they need my help as a tutor, if it is a good idea you can add that I have two kids in high school junior that I have been teaching them math, algebra, geometry and pre calculus
ChatGPT said:
Here’s a strong, natural-sounding paragraph you can use on Superprof:
I’m a mechanical engineer with a master’s degree and a passion for making math clear and practical. As a father of two high school juniors, I’ve spent years helping them master Algebra, Geometry, and Pre-Calculus — learning how to explain complex ideas in simple, real-world ways. Whether you’re struggling to catch up or want to excel, I’ll help you understand why math works, not just how to do it, so you can build real confidence and lasting skills.
Would you like me to make a shorter, punchier version (about 2 sentences) that fits the top section of your Superprof profile?
You said:
Yes
ChatGPT said:
Here’s a shorter, more attention-grabbing version perfect for the top of your Superprof profile:
I’m a mechanical engineer with a master’s degree and a father of two high school juniors, so I know how to make math click. I help students truly understand Algebra, Geometry, and Pre-Calculus — not just memorize formulas.
Would you like me to make a slightly more formal version (for parents seeking a serious, professional tutor) or keep this friendly and relatable tone?
You said:
Make it more detailed, include these points
Your teaching method and techniques
- A typical lesson plan
- What sets you apart as a tutor
- Who the lessons are for (degree, level, class, specificities, etc.)
ChatGPT said:
Excellent — here’s a well-rounded Superprof “About” paragraph that includes your teaching method, lesson structure, what makes you different, and who your lessons are for:
I’m a mechanical engineer with a master’s degree and a father of two high school juniors, so I understand both the academic and practical sides of learning math. I teach Algebra, Geometry, Pre-Calculus, and Calculus to middle school, high school, and early college students. My lessons focus on understanding concepts through real-world examples, step-by-step problem solving, and building confidence rather than memorizing formulas. A typical session begins with reviewing key ideas, followed by guided practice and real applications to reinforce learning. What sets me apart is my ability to explain complex problems in simple, logical ways drawn from my engineering experience and years of helping my own kids succeed in advanced math. My goal is to help every student truly understand math and develop lasting problem-solving skills.
Rates
Rate
- 20 US$
Pack prices
- 5h: 100 US$
- 10h: 200 US$
online
- US$20/h
free lessons
The first free lesson with Ahmed will allow you to get to know each other and clearly specify your needs for your next lessons.
- 1hr
Similar Maths teachers in Canton Township
Isaac
Accra & Online
- 15 US$/hr
- 1st lesson free
Stella Etornam
Kasoa & Online
- 50 US$/hr
- 1st lesson free
Evans
Jasikan & Online
- 19 US$/hr
- 1st lesson free
Hannah
Accra & Online
- 20 US$/hr
- 1st lesson free
Abel Kwaku
Lapaz
- 15 US$/hr
- 1st lesson free
Aimee
Accra & Online
- 80 US$/hr
- 1st lesson free
Rita
Akropong & Online
- 12 US$/hr
- 1st lesson free
Hakeem
Cape Coast & Online
- 15 US$/hr
- 1st lesson free
Ruth
Accra & Online
- 100 US$/hr
- 1st lesson free
Sechiro Lawrence
Navrongo & Online
- 10 US$/hr
- 1st lesson free
ISHMEAL
Accra & Online
- 20 US$/hr
- 1st lesson free
Mathias
Accra & Online
- 80 US$/hr
- 1st lesson free
Philippa
Accra & Online
- 16 US$/hr
- 1st lesson free
Collins
Ho & Online
- 70 US$/hr
- 1st lesson free
Emmanuel
Accra
- 150 US$/hr
- 1st lesson free
Prosper
Tarkwa & Online
- 70 US$/hr
- 1st lesson free
Prince
Akaporiso & Online
- 20 US$/hr
- 1st lesson free
Israella
Accra & Online
- 10 US$/hr
- 1st lesson free
LUQMAN
Tarkwa & Online
- 5 US$/hr
- 1st lesson free
Hakeem
Cape Coast & Online
- 18 US$/hr
- 1st lesson free
-
See Maths tutors
