Explained examples: Grade 4 shapes and multiple transformations.

📚 Quick Study Guide

• 📐 Shapes: Grade 4 focuses on identifying and understanding basic 2D shapes like squares, rectangles, triangles, circles, and parallelograms.
• 🔄 Transformation: A transformation is a way to change the position or orientation of a shape. The main types are translation (slide), reflection (flip), and rotation (turn).
• ➡️ Translation: Moving a shape without changing its size, shape, or orientation. Think of it as sliding the shape across the page.
• зеркало Reflection: Flipping a shape over a line (the line of reflection). The reflected shape is a mirror image of the original.
• ঘুরানো Rotation: Turning a shape around a fixed point (the center of rotation). Rotations are measured in degrees (e.g., 90 degrees, 180 degrees).
• 📏 Congruence: Transformations produce congruent shapes, meaning the original shape and the transformed shape are the same size and shape.
• 💡 Multiple Transformations: Combining two or more transformations. For example, sliding a shape and then flipping it.

Practice Quiz

1. What type of transformation is it when you slide a shape across the page?
   1. Reflection
   2. Rotation
   3. Translation
   4. Enlargement
2. Which transformation creates a mirror image of a shape?
   1. Translation
   2. Rotation
   3. Reflection
   4. Dilation
3. What is it called when you turn a shape around a point?
   1. Translation
   2. Reflection
   3. Rotation
   4. Slide
4. If you reflect a square, what shape do you get?
   1. Triangle
   2. Rectangle
   3. Square
   4. Circle
5. Which of the following is NOT a transformation?
   1. Translation
   2. Rotation
   3. Reflection
   4. Coloring
6. A shape is translated 5 units to the right and 2 units up. What type of transformation is this?
   1. Reflection
   2. Rotation
   3. Translation
   4. Enlargement
7. A triangle is rotated 180 degrees. What kind of transformation is this?
   1. Reflection
   2. Translation
   3. Rotation
   4. Slide