Montana Math MT.2.G.2
The Standard
Partition a rectangle into rows and columns of same-size squares and find the total number.
2026 Montana Mathematics Content Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students divide a rectangle into equal-size squares arranged in rows and columns. They find the total number of squares by counting across the rows or down the columns.
What Mastery Looks Like
- A student can draw a grid with 3 rows of 4 equal squares and no gaps. They count 4 + 4 + 4 to get 12 and explain what the 3 and 4 describe.
Common Misconceptions
- Students may draw some spaces wider than others, so the spaces are not equal squares. They may count the grid lines instead of the squares, or add the rows and columns instead of counting all the squares.
How to Assess It
- Give students a 2-inch by 5-inch rectangle. Ask them to draw two rows of five equal squares, write the total, and show how they counted.
Lesson moves
Ways to Teach It
Give pairs a rectangle outline and 12 square tiles; have them cover it in three rows of four with no gaps.
Show a grid with three rows of four squares and ask students to write why 4 + 4 + 4 gives the total.
Hand out grid cards; partners take turns naming the total number of squares, then check by counting each square.
Show a chocolate bar with three rows of five square pieces; students sketch it and count the pieces.
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Printable MT.2.G.2 Worksheet

A ready-to-print activity worksheet aligned to MT.2.G.2, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- MT.3.MD.6
Measure areas by counting unit squares.
- MT.2.OA.4
Use addition to find the total number of objects arranged in rectangular arrays.
- MT.2.G.3
Partition circles and rectangles into equal shares, recognize that equal shares need not have the same shape, and express the shares in two-halves, three-thirds...
- MT.1.G.4
Partition circles and rectangles into two and four equal shares. Describe the shares using the words: halves, fourths, and quarters.
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