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These 12-piece plastic puzzles are scored in 1\" sections so that visualizing area and perimeter without graph paper is quick and easy!.Rainbow Pentominoes have been specially scored to show the five congruent squares that form each piece. This special scoring helps children visualize area and perimeter easily, and promotes greater understanding as children develop spatial skills. Each pentomino piece resembles a letter of the alphabet. As you direct students in activities, refer to the pieces using their letter names.Six scored pentominoes in red, blue, green, yellow, orange, and purple (12 pieces per pentomino for a total of 72) packed in a clear plastic tub for easy storage. Teaching Notes included.• Usage ideas: Perfect for teaching problem solving and spatial sense.
• Material: Plastic.
• Perfect for teaching problem-solving and spatial sense.
• Age group and grade: Ages 6 - 13 and grades 1st - 12th.
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