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- Grade Range
- 10th - 11th
- Rating
Students prove angles congruent by use of vertical angles definition, subtraction postulate, and transitivity postulate. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students observe and solve examples of corresponding angle postulates, alternate interior angle theorems, and exterior and consecutive angles. They complete the Determining Angle Measure With Parallel Lines worksheet. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students observe and solve examples of betweenness, ruler postulate, and segment addition postulate. They complete the Finding the Measure of Segments worksheet using the distance formula. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students view examples of a ray, opposite rays, collinear rays, angles, and straight angles. They discuss and demonstrate how to use a protractor and complete worksheet problems on rays and angles. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students define and discuss congruency and the corresponding parts between congruent triangles. They create a pair of congruent triangles, test for congruency, and complete a worksheet. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students explore different classifications of triangles. Students define geometric terms associated with triangles. Following a step-by-step process, introduced and completed in class, they solve a proof. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students review the postulates of algebra that have a significant relationship to geometry. Students complete proofs through the use of geometric properties and principles. This lesson is a continuation of a previous lesson on proofs. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students are introduced to the concept that proofs are related to the construction of parallel lines. As a whole class, if-then statements are reviewed. Students create an inf-then proof for parallel lines. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students solve problems related to polygons using the measures of the sides of interior and exterior angles. Students create proofs of relationships between angles in polygons using the properties of angles. Problems and figures are included. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students create a painting that clearly exemplifies the use of primary pigments to make secondary pigments. They demonstrate the distinction between value and saturation. They explain the affect of adjacent colors on each other and discuss Wright's use of color in The Blacksmith's Shop. Full Review »
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