U7 Error Analysis P1

U7 Error Analysis

Jordan solved the problem below. His work and answer is in BOLD.

Find the area of the triangle below:

Open Ended

What mistakes did Jordan

make? Use complete

sentences to explain.

Multiple Choice

What is the formula for the area of a triangle?

• $\frac{1}{2}bh$

• $\frac{b}{h}$

• $bh$

• $bh\times2$

Multiple Choice

What is the correct answer?

• 100 cm squared

• 25 cm squared

• 10 cm squared

• 20 cm squared