Common Core Math Standard 2.G.A.3

Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.

Kids ‘N Cookies Introduce the concept of frac- tions in the con- text of a real-life problem. Choose 3 friends and 4 cookies. Ask your students how they will share them equally and still be friends.

Visual Fractions Tis manipulative demonstrates that a fraction will look different- ly depending on the whole being divided.

Shading Fractions - Students can explore dividing different wholes into parts and shading parts to create fractions.

Virtual Geoboard - Students can explore dividing the same wholes into parts in different ways.

Sorting Fractions -Te activity chal- lenges students to sort equal fractions with different shaped wholes into three groups.

Common Core Math Standard 3.G.A.1

Understand that shapes in different categories (e.g., rhombuses, rectan- gles, and others) may share attri- butes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilater- als). Recognize rhombuses, rect- angles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.

Pattern Blocks Shape Tool - Choose relevant shapes to start a discussion about how one shape can have different names.

Exploring Shape Classification

Challenge students to sort shapes into four different diagrams based on their characteristics.

Carroll Diagram Shape Sort

Encourage stu- dents to think about multiple categories a shape could belong in.

Shape Guess Challenge students to find all of the shapes that match the given character- istic.

Classifying Polygons - Challenge students to sort shapes into a triple Venn Diagram without knowing the categories. Ten students are asked to figure out the categories.

Common Core Math Standard 4.MD.C.6

Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.

Measuring Angles Animation - Use this animation to review how to use a protractor to measure an angle.

Random Angle Explorer Challenge stu- dents to estimate the measure- ment of a random angle and then to measure the angle to check their estimate.

Drawing Angles Animation - Use this animation to review how to draw an angle.

What’s My Angle? Students can create angles, estimate the measurements of angles, and measure angles.

Super Math Golf Use this game to challenge stu- dents to use an- gle and distance estimations to score a hole in one!

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