C-1
Analyze and describe properties of two-dimensional shapes and three-dimensional objects using terms such as vertex, edge, angle, side and face.
Platonic Solids - Virtual Manipulative- This online activity allows you to experiment with five platonic solids, counting their faces, edges, and vertices.
(Requires Java)
Prisms, Pyramids, Cones, and Cylinders- This web site uses pictures and clear explanations to teach about Prisms, Pyramids, Cones, and Cylinders. When done with the review, students can take an interactive quiz over what they learned.
Three Dimensional Review- This web site provides a good introduction (or review) of what a three-dimensional object is. After the review, students can take an interactive quiz where they distinguish between two- and three-dimensional objects.
Geometry- 3D Match
C-2
Identify and describe the relative size of angles with respect to right angles as follows:
a. Use physical models, like straws, to make different sized angles by opening and closing the sides, not by changing the side lengths.
b. Identify, classify and draw right, acute, obtuse and straight angles.
ReviseWise - Angles- This web site uses colorful animation and great explanations to teach about types of angles, and the sum of the angles in triangles and quadrilaterals. After the instruction, the students can take an online quiz to assess their understanding.
What's My Angle?- This is a great collection of interactive angle activities including estimating angles, measuring angles, and creating angles. These are great for individual student use or a whole class activity. Be sure to click the "Skip Intro" button to begin using the tools.
Kinds of Angles- This web site uses clear explanations and diagrams to teach about kinds of angles, including right, acute, and obtuse. After the review, students can take an interactive quiz on the material.
C-3
Find and name locations on a labeled grid or coordinate system; e.g., a map or graph.
What's the Point?- In this online activity students identify points on a grid. There are three difficulty levels being identifying points in the first quadrant, identifying points on the entire grid, and clicking on the grid to locate corrdinates.
Coordinates Game 1- Locate the correct coordinates on the grid. The smiley face indicates correct or incorrect answers.
Coordinates Game 2- Type in the coordinates from the grid and get instant feedback with a smiley face.
Billy Bug- Use the arrows to move the grub to the correct coordinate location.
C-4
Draw lines of symmetry to verify symmetrical two-dimensional shapes.
Symmetry Game- Answer how many lines of symmetry each shape has. You can click on hints to have the lines of symmetry displayed for you.
This is a good whole group symmetry introduction.
Symmetry Sort- How many lines of symmetry does a square have? Find out this and more in this symmetry sorting activity. Available as a bounce back demo or without bounce back for assessment.
C-5
Build a three-dimensional model of an object composed of cubes; e.g., construct a model based on an illustration or actual object.
Tanagrams
Tangrams- Are you up to the tangram challenge?