###### Hawaii

######

###### Friday

###### Level 2

## Ms. Brianne

### Target 1

###### Lesson Type:

New

Algebra

:

Variable

Solve addition and subtraction problems where a symbol is used to represent an unknown quantity.

###### Supporting targets:

###### 1:

Informal introduction to variables.

###### 2:

Explain that symbols can be anything: a question mark, a blank space, a color, a shape. The symbol is just an indication of what needs to be solved.

###### 3:

Look closely at the problem to determine what needs to be solved, it is not always after the =.

###### 4:

###### 5:

###### Grade:

2nd

###### Vocabulary:

Equal, Add, Subtract, Number, Variable

Activities:

- Students solved for the unknown quantity of the variable in an addition or subtraction equation.
- Students used the quantities to solve equations that included the same shape or picture variables.

### Home Exploration

###### Challenge Problem:

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###### Challenge Answer:

### Target 2

###### Lesson Type:

###### Continuation

###### Number Operation

###### Computation

###### Work with equal groups of numbers to gain foundations for multiplication (repeated addition).

:

###### Supporting targets:

###### 1:

Write an addition equation to express the sum of equal addends.

###### 2:

Set the foundation for later exploration of multiplication (i.e. 2+2+2+2 =? How many 2s did you add? When you add 4 number 2s together, what do you get?)

###### 3:

Use addition to find the total number of objects in an array.

###### 4:

###### 5:

###### Grade:

2nd

###### Vocabulary:

Row, Column, Repeat, Add, Array, Multiply, Times

Activities:

- Students drew an array to represent a multiplication equation and wrote a matching equation using repeated addition.
- Given a picture of an array, students wrote the corresponding multiplication and repeated addition equation.
- Students completed a chart to show the multiplication equation, array diagram, repeated addition equation, and description of grouping in words.

### Home Exploration

###### Challenge Problem:

###### Challenge Data:

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###### Challenge Answer:

### Target 3

###### Lesson Type:

###### Continuation

###### Geometry

###### Modeling

###### Visualize spatial relationships between shapes and planar space.

:

###### Supporting targets:

###### 1:

Solve simple tangram puzzles by recognize which spaces in the puzzle the given seven shapes can and cannot fit.

###### 2:

###### 3:

###### 4:

###### 5:

###### Grade:

2nd

###### Vocabulary:

Tangrams, Flip, Slide, Rotate

Activities:

- Students were given the silhouette of an animal and had to figure out how all 7 pieces fit into the silhouette.
- Students flipped and rotated pieces to figure out the appropriate position for each shape.

### Home Exploration