###### Sunnyvale

###### October 12, 2021, 11:00:00 PM

###### Tuesday

###### Level 3

## Ms. AJ

### Target 1

###### Lesson Type:

Continuation

Measurment

:

Techniques and Formulas

Find the perimeter of a given shape.

###### Supporting targets:

###### 1:

Define perimeter.

###### 2:

Understand that perimeter is the distance around a figure.

###### 3:

Understand that perimeter can be found by adding the lengths of the sides of a figure.

###### 4:

See a link between finding the perimeter of rectangles and multiplication.

###### 5:

Understand that figures with the same perimeter can look different.

###### Grade:

3rd

###### Vocabulary:

Perimeter, Fence/Walls, Units

Activities:

Students used blocks on array boards to compose different figures they then found the perimeters of.

Students worked on activities in their work books involving finding the perimeter of given figures using given units, or centimeter cubes.

### Home Exploration

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### Target 2

###### Lesson Type:

###### New

###### Measurment

###### Techniques and Formulas

###### Measure area by counting full and half-unit squares.

:

###### Supporting targets:

###### 1:

Relate area to arithmetic operations (multiplication and addition).

###### 2:

Recognize area as a measurement of 2D shapes.

###### 3:

Estimate area of given figures and then measure to compare the estimation to the actual measurement.

###### 4:

###### 5:

###### Grade:

3rd

###### Vocabulary:

Area, Length x Width / Base x Height, Multiplication, “Floor Plan”

Activities:

Students used figures they made themselves on array boards using blocks and found their area.

Students found that with rectnagular or square figures, they can find the area by multiplying the length times the width (or base times height).

Students broke more complex figures down into rectangles and squares in order to solve for the area for each piece, then added them up to get the figures' total areas.

Students found both the areas and the perimeters of given, complex figures.

### Home Exploration

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### Target 3

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### Home Exploration