Junior High School Teaching Video – Micro Lesson for 21st C. Competency
Observing Proportional Segments Cut by Parallel Lines in Notebooks and Stairs
- Quick and Accurate Trisection
- Observe “Construct” Proportional Segments Cut by Parallel Lines
- Hypothesize the Inverse Statement of Proportional Segments Cut by Parallel Lines
- Are Distances Between Equidistant Points Also Proportional?
Comparing Triangular Ratios
- The Intuitive Feeling of Steepness and Slope
- Heroic Slope, Can You Ride Up?
- Measuring Slope
The Relationship Between Two Variables
- Same Taste
- Land Redistribution
- Proportional and Inverse Relationships in Motion
- The Relationship System of Two Variables: Addition, Subtraction, Multiplication, and Division
Can It Strike?
- Analyze the trajectory of the cannonball
- Represent the path with a function
- Establish a system for y = ax²
- Exploring the transformation of corresponding quadratic functions from graph translation
The Magic of Factors, Multiples and Powers
- Is It Allocatable?
- Disassemble Until it Cannot be Disassembled Further
- The Distance Between Trillion and Hundred Million
- Green Algae Division
Research and Inquiry: The Congruence of Triangles
- By Three Given Sides to Approach to the Least Conditions for a Triangle.
- By Replacing the Conditions of Three Sides to Derive and Reduce the Plausible Conditions of the Congruence of Tiangles.
- To Research and Inquiry the Uniqueness among the Plausible Conditions of the Congruence of Triangles.
- To Generate the Relationships among the Properties of the Congruence of Triangles by Students.
The Systematic Thinking Promotes the Development of Ratio Concept and Comptence
- Guiding the initial experience of systematic thinking.
- The relationship between proportions and ratios.
- Understanding direct proportion.
- Understanding inverse proportion.
Cultivating systematic thinking.
Radicals and Creativity
- See how the simplest radical form is computed.
- Activating the thinking for denominator rationalization.
- Self-invented method of rationalization in various approaches.
- Illustrate the Pythagorean Theorem that wasn’t taught
Fostering creativity.