Hawaii
June 26, 2021, 8:00:00 PM
Saturday
Level 2

Ms. Raejean

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:

4:

5:

Grade:

2nd

Vocabulary:

Variables, Unknown

Activities:

  • First students reviewed adding and subtracting numbers for fluency. Students used counters as needed.
  • The term "variables" or unknown numbers was introduced. A letter or question mark represents the number we don't know. We looked at what was known and unknown in the equations.
  • We talked about using subtraction to help with addition equations. 10 + ? = 17, so 17 - 10 = 7. [? = 7]
  • We used counters to help us find the unknown number in a subtraction equation. 22 - ? = 20. "If you have 22 counters, but want to make 20, what would you do?" "Take away 2." [? = 2]
  • Students solved problems to find the unknown.

Home Exploration

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Target 2

Lesson Type:
New
Geometry
Coordinates
Use coordinates (the intersection of a row and column) to indicate the location of an object on a grid.

:

Supporting targets:
1:

Understand that in a coordinate, the first number indicates right and left (column) placement and the second up and down (row) placement.

2:

Identify a row and a column.

3:

Use visual tracking to accurately find the intersection point of a row and column.

4:

Explain that coordinates are used so that exact same location can be found by multiple people.

5:

Grade:

2nd

Vocabulary:

Coordinates, Rows, Columns

Activities:

  • The concept of "coordinates" was introduced. We practiced following the row and column to find objects on a grid. We also followed the row and column to their corresponding numbers to identify the coordinates of the object.
  • Students began making their own grid of objects for more practice with finding coordinates.

Home Exploration

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Target 3

Lesson Type:

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Grade:

Vocabulary:

Activities:

Home Exploration

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