描述移动
Describing Movements
描述位置之间的移动,即将图形按指定单位向左/右和上/下平移
Describe movements between positions as translations of a given unit to the left/right and up/down
学习证据 / Evidence
- 描述从 (2,3) 移动到 (5,3) 是向右移动 3 个单位
- 将图形向右平移 4 个单位、向上平移 2 个单位,并说出新坐标
- 根据给定的平移,预测一个点会移动到什么位置
- Describe moving from (2,3) to (5,3) as 3 units to the right
- Translate a shape 4 units right and 2 units up and state the new coordinates
- Predict where a point will be after a given translation
评估问题 / Assessment
如果网格上有一个图形位于位置 (2, 3),你让 {{name}} 把它向右移动四格,再向上移动两格,{{name}} 能不能不先画图就算出它的新位置?
If a shape is at position (2, 3) on a grid and you tell {{name}} to move it four squares right and two squares up, can they work out its new position without drawing it first?