1.Row [r??] n. 行；排； 列
rows of houses
一排排房屋
In the top row
在最上面的一排
He planted 10 trees in two rows.
他两排种了10棵树。
Amy planted 8 flowers in the second row.
艾米在第二排种了8朵花。
2.Penny ['p?ni] n. （美）一分钱硬币；便士（英国货币单位，100便士合1英镑）
Nickel [?n?k?l] n.（美）五分硬币
Dime [da?m] n.（美）十分硬币
Quarter ['kw?rt?] n.（美）二十五分硬币
￠ 美分（美国货币符号）
1 ￠ = 1 cent
10 ￠ = 10 cents
5 pennies equal 1 nickel.
5个一分的硬币等于1个五分的硬币。
10 pennies equal 1 dime.
10个一分的硬币等于1个十分的硬币。
A quarter is worth 25 cents.
一个二十五分硬币相当于25美分。
Each flower costs 20￠. How much would 2 flowers cost?
每朵花20美分。两朵花要多少钱？
3.Geometry 几何学
Face n. 面；表面
Corner n. 角
Vertex ['v?t?ks] n. 顶点
Side n. 边
dimensional 三维
Cube n. 立方；立方体
Sphere [sf?r] n. 球，球体
Cone [kon] n. 圆锥体
cylinder ['s?l?nd?] n. 圆柱体
Rectangular prism [r?k't??gj?l?] ['pr?z?m] n. 矩形棱柱；长方柱
pyramid ['p?r?m?d] n. 角锥形; 角锥体
4.Position words
Behind 在…后面
Below 在…下面
In front of 在…前面
Down the slide 滑下滑梯
Up the ladder 爬上梯子
Next to 紧挨着
To the left of 在…的左边
To the right of 在.的右边
Above 在…上面
What is above the bear?
熊上面有什么？
The turtle is to the right of the puddle.
泰国有名的情降师傅乌龟在水坑的右边。
The frog is to the left of the stone.
青蛙在石头的左边。
5.Nuts n. 坚果
Almond [?ɑ?m?nd] n. 扁桃仁；扁桃树
Walnut ['w?ln?t] n. 胡桃；胡桃木
Pecan [p?'kɑn] n. 美洲山核桃；山核桃树
Hazelnut ['hezln?t] n. 榛子；榛树
6.Two-digit addition and subtraction 两位数的加减法
What is 10 more than 14?
什么比14多10？
What is 10 less than 50?
什么比50少10？
7.Otter ['ɑt?] n. 水獭；水獭皮
Sea otter 海獭
How many more otters were seen on Monday than on Friday?
星期一看到的水獭比星期五多多少？
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