## Common Core State Standards for Mathematics

Grade(s) 3 resources related to the following standard:
Measurement and Data
Geometric measurement: understand concepts of area and relate area to multiplication and to addition.
6. Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units).

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This interactive Java applet helps users develop two-dimensional spatial reasoning skills. The applet allows users to choose from 12 pentominoes to place and combine on the drawing board. Each pentomino contains 5 square units connected to form different shapes. The user can flip, slide, and turn each pentomino. A set of five activities encourages students to build congruent shapes, create stair step figures, name them according to letters from the alphabet to which they are similar, and build shapes with varying perimeters. This versatile applet can also readily be used to address additional concepts including area, transformations, symmetry, similarity, tilings, and tessellations.
Activity, Interactive Media
In this interactive game students must build "cyber-spaceships" utilizing the number of sides given. Each spaceship must be a different shape. The perimeter of each spaceship at each stage of the game will be the same, while the area (number of space creatures it holds) will vary.
Activity, Game
In this iOS app students help design the questions and then respond with their estimated answer by moving the indicator arrow to the correct location on the numberline or duplicating the items shown. Estimates are then compared to actual answers on a numberline and scored based on accuracy. There is a button called "Really?!" which will take the user to the internet to find out more about the questions that they have answered. Students can play alone or use the pass and play feature with classmates.
Game, Mobile App
These 4 activities, part of the Mathematics Developmental Continuum of the State of Victoria, Australia, are intended to introduce learners to the problem solving skills of clarifying questions, making assumptions and choosing a solving strategy. Students are challenged to investigate problems in household math, open-ended planning projects, and Fermi questions. Supporting documents and progress indicators are included.
Activity, Instructor Guide/Manual
Grade Level: 3, 4, 5, 6+
Resource is part of a PD collection
This 3-lesson unit provides young learners with multi-sensory activities that introduce the concepts of area and perimeter. Students position themselves to form a perimeter, and use craft sticks, geoboards and square tiles to form and measure areas and perimeters. Connections from children's literature are suggested, and learning and assessment materials are provided.
Activity, Unit of Instruction
This interactive Java applet allows users to explore the relationship between area and perimeter of both rectangles and irregular shapes. In the "Auto Draw" mode a shape is given, and the user finds the area and the perimeter. In the "Create Shape" mode users create their own shape and give the area and perimeter of that shape. The activity allows users to explore the relationship between shapes with a fixed perimeter and variable area or shapes with a a fixed area and variable perimeter. An optional scoring feature allows users to keep track of the number correct.
Interactive Media
This interactive Java applet allows users to explore perimeter and area and the relationship between them. The activity gives irregular shapes or rectangles on a grid, and then the user enters the perimeter and area of the figure. An optional scoring feature allows users to keep track of the number correct.
Interactive Media