Education Technology

### Angles and Similarity

Experiment with the measures of the angles of similar triangles to determine conditions necessary for two triangles to be similar.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### Applications of Similar Figures

Students will identify corresponding parts of figures and use the definition of similar figures to solve real-world applications involving rectangles and triangles.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### Corresponding Parts of Similar Triangles

Change the scale factor (r) between similar triangles; identify the corresponding parts and establish relationships between them.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS

### Nested Similar Triangles

Discover the conditions that make triangles similar by moving the sides opposite the common angle in nested triangles.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### Ratios of Similar Figures

Students explore the ratio of perimeter, area, surface area, and volume of similar figures in two and three dimensional figures.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS

### Scale Factor Area Perimeter

Explore the relationship of perimeter and area in similar triangles when the scale factor is changed.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS

### Similar Figures

Observe what happens to ratios of pairs of side of rectangles and triangles.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS