Lesson Example Discussion Quiz: Class Homework |
Step-4 |
Title: 3D-shapes |
Grade: 4-a Lesson: S2-L7 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
What is the area of one side of a cube whose length of vertices measures 12cm? |
|
2 |
Step |
The length of one side of the cube is given. |
12 cm |
3 |
Hint |
A cube has six square faces. We use a square’s area formula to find one face’s area. |
|
4 |
Formula |
Area of a square |
\$side \times side\$ |
5 |
Step |
Now plug the values into the formula |
A = \$12 \times 12\$ |
6 |
Step |
After multiplication, we obtain a resulting value. |
A = 144 |
7 |
Step |
So,the area of one side cube is 144 sq.cm. |
|
8 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
9 |
Choice.A |
This number is right because we put the right numbers into the square formula space |
144 sq.cm |
10 |
Choice.B |
This is an incorrect value and does not match the result obtained from the correct calculation |
126 sq.cm |
11 |
Choice.C |
This is an incorrect value and does not match the result obtained from the correct calculation |
136 sq.cm |
12 |
Choice.D |
This is an incorrect value and does not match the result obtained from the correct calculation |
114 sq.cm |
13 |
Answer |
Option |
A |
14 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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