帮我解答图片中的所有题目,并用适合小学2年级学生的教育方式,给出教学课件,用中文回复。---**Extraction Content:**
**Section 1:**
Weekly learning content: Recognizing right angles, rectangles, and squares.
一、 State the calculation process for the following equations, those with * require verification.
69 ÷ 9 =
37 ÷ 7 =
*501 + 299 =
*284 - 178 =
**Section 2:**
二、 I can judge (Mark "√" for correct, "×" for incorrect)
1. The longer the sides of an angle, the larger the angle. ( )
2. The right angle on the blackboard is larger than the right angle on the triangle ruler. ( )
3. After cutting off one corner from a rectangular piece of paper, only 3 corners are left. ( )
4. The angles on a triangle ruler are all right angles. ( )
5. The wider the opening of the two sides of an angle, the larger the angle. ( )
6. Looking at an angle with a magnifying glass makes the angle larger. ( )
**Section 3:**
三、 I can compare size.
Chart/Diagram Description:
Type: Diagram showing five angles. Each angle is labeled with a number inside a circle: ①, ②, ③, ④, ⑤. Below the diagrams, there is a blank line with five underscores separated by " > " symbols.
- Angle ①: An acute angle.
- Angle ②: An obtuse angle.
- Angle ③: An acute angle, appears smaller than Angle ①.
- Angle ④: An acute angle, appears larger than Angle ① and ③, possibly close to 90 degrees.
- Angle ⑤: An obtuse angle, appears larger than Angle ②.
The angles are arranged visually from left to right: ①, ②, ③, ④, ⑤.
Text below the diagrams: _ > _ > _ > _ > _
**Section 4:**
四、 I can count.
Chart/Diagram Description:
Type: Diagrams showing five geometric shapes with questions below them.
- Shape 1: A trapezoid. Text below: ( ) 个角 (( ) angles)
- Shape 2: A rectangle. Text below: ( ) 个直角 (( ) right angles)
- Shape 3: A convex hexagon. Text below: ( ) 个角 (( ) angles)
- Shape 4: An angle formed by two rays originating from a point. Text below: ( ) 个角 (( ) angles)
- Shape 5: A triangle. Text below: ( ) 个角 (( ) angles)
**Section 5:**
Intelligence Challenge:
Chart/Diagram Description:
Type: Diagrams showing three composite shapes divided by lines, with questions below them.
- Shape 1: A large square divided into a 2x2 grid of smaller squares. Text below: ( ) 个正方形 (( ) squares)
- Shape 2: A large rectangle divided vertically into two parts. The right part is further divided horizontally into two smaller rectangles. Text below: ( ) 个长方形 (( ) rectangles)
- Shape 3: A large rectangle divided horizontally into two parts. Both parts are further divided vertically into two smaller rectangles, forming a 2x2 grid of rectangles within the large rectangle. Text below: ( ) 个长方形 (( ) rectangles)