Canadian Patterning Lesson Plans & Activities Grade 3 - Free Printable

Problem Analysis and Solution

The worksheet focuses on identifying repeating patterns involving shapes and their attributes. Let's solve each question step by step.

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#### Question 1:
Pattern:
Yellow square, yellow triangle, yellow square, yellow triangle, yellow square, yellow triangle.

##### a) Write in words what the pattern is:
- The pattern alternates between a yellow square and a yellow triangle.

##### b) What two attributes are changing in this pattern?
- Attributes: Shape and size (though all shapes are the same size, the shape itself changes).
- Answer: Shape, Size (if considering uniform size as an attribute).

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#### Question 2:
Pattern:
Black circle, yellow circle, black triangle, black triangle, black circle, yellow circle, black triangle, black triangle.

##### a) Write in words what the pattern is:
- The pattern alternates between a pair of circles (black and yellow) and a pair of triangles (both black).

##### b) What two attributes are changing in this pattern?
- Attributes: Shape and color.
- Answer: Shape, Color.

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#### Question 3:
Pattern:
Large black circle, small black circle, large yellow circle, small black circle, large black circle, small yellow circle.

##### a) Describe it:
- The pattern alternates between large and small circles, with colors changing irregularly (black and yellow).

##### b) What two attributes are changing in this pattern?
- Attributes: Size and color.
- Answer: Size, Color.

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#### Question 4:
Pattern:
Yellow square, black circle, black circle, yellow square, black circle, black circle, yellow square.

##### a) What is the pattern?
- The pattern alternates between a yellow square and a pair of black circles.

##### b) What two attributes are changing in this pattern?
- Attributes: Shape and color.
- Answer: Shape, Color.

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Final Answers:

1.
- a) The pattern alternates between a yellow square and a yellow triangle.
- b) Shape, Size.

2.
- a) The pattern alternates between a pair of circles (black and yellow) and a pair of triangles (both black).
- b) Shape, Color.

3.
- a) The pattern alternates between large and small circles, with colors changing irregularly (black and yellow).
- b) Size, Color.

4.
- a) The pattern alternates between a yellow square and a pair of black circles.
- b) Shape, Color.

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Boxed Final Answer:

\[
\boxed{
\begin{array}{ll}
\text{1. a) Alternates between yellow square and yellow triangle.} & \text{b) Shape, Size} \\
\text{2. a) Alternates between pairs of circles (black and yellow) and pairs of triangles (both black).} & \text{b) Shape, Color} \\
\text{3. a) Alternates between large and small circles, with colors changing irregularly (black and yellow).} & \text{b) Size, Color} \\
\text{4. a) Alternates between a yellow square and a pair of black circles.} & \text{b) Shape, Color} \\
\end{array}
}
\]