Math Strand: Number Sense and Numeration
Math Strategy: Skip Counting
English video:
Materials: One die, whiteboard and whiteboard marker
(Extension: colour tiles)
Overview:
This game is very engaging for students and helps to prepare students to move from using repeated addition to using grouping of numbers when modeling arrays when solving multiplication problems. After completing this lesson you would then begin a lesson using arrays for equal groups.
On each turn, students roll a 1–6 number cube to find out how many circles to draw and then roll the cube again to find out how many stars to draw in each circle. For example, for a first roll of 4 and a second roll of 3, the student would draw this:
How this activity supports student learning?
Playing Circles and Stars helps students understand that multiplication
can be thought of as combining equal groups and is, therefore, related to addition when the same number is added multiple times. From playing, students become familiar with multiplying numbers from 1X1 to 6X6.
As an extension, you could use try using an 8 sided die.
After students know how to play the game, they learn to represent each
of their turns with addition and multiplication equations. This helps them connect the standard symbols to their experience and also strengthens the connection between addition and multiplication.
Where to next?
In the Alex Lawson text, What To Look For there are several other games that can be played to support unitizing, such as:
- How Long? How Many?, which uses Cuisenaire rods
- Skip Counting Race
- Target 75
- Multiplication Challenge
These can all be found on page 185-189.
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