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Caribbean Math CoachPrototype

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Caribbean Math Coach

An independent CSEC Mathematics learning prototype. It is not affiliated with, or endorsed by, CXC. When you sign in, we store your learning activity and focused practice time to show progress and support your learning. Calculator keystrokes are not stored. Learners under 18 should use this with a parent or guardian aware.

Demonstration

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Demo

Caribbean secondary maths

Practise CSEC Mathematics, or keep a photo of your own working.

Missions and your own page are separate. A photograph is not marked.

Start practising Add my own work

Captured pageFirst error

Solve 3(x − 2) + 5 = 20.

First incorrect step3x − 2 + 5 = 20

Multiply everything inside the brackets

You multiplied 3 by x, but you also need to multiply 3 by −2.

3(x − 2) = 3x − 6

CSEC words to know

Distributive law: — the mathematical name for this rule.
Expand the brackets: — multiply the number outside by every item inside.

Demo estimate, not an official CXC mark

Estimated mark 1/4

See a worked example

How it works

Practise, or keep your own page

1
Practise
Open a mission when you want guided questions. No photograph is required.
2
Your own page
Take a photo or choose a file. It stays on this device and is not marked.
3
Worked example
The demonstration uses a prepared question. It does not read a student's page.

Example feedback

Start at the first slip.

Question

Solve 3(x − 2) + 5 = 20.

First error

3x − 2 + 5 = 20

You multiplied 3 by x, but you also need to multiply 3 by −2.

Correction

Multiply everything inside the brackets

3(x − 2) = 3x − 6

CSEC words to know

Distributive law: — the mathematical name for this rule.
Expand the brackets: — multiply the number outside by every item inside.
Remove the brackets: — another way the required process may be described.

Open the full worked example

Your progress

Start unassessed. Earn a starting point.

Number, Algebra, Geometry and Statistics stay unassessed until you complete a mission. Mission 1 measures expanding brackets in Algebra only.

View your progress

Keep a photo of your working

No account is required. The photo stays on this device and is not marked.

Add my own work