digit place value 乘法: equal groups ,multiplication, factor, product 除法:division, quotient pattern - something that repeats itself over and over in an organized way. patterning rule - the reason the pattern is an actual pattern. graph - information displayed in a horzontal and vertical axis in an organized way. symmetrical - exactly the same on one side as on the other. tally - a quick gathing of information based on the same criteria. mass - the metric measurement for weight measured in g(grams ) and kg. congruent 全等的 circle, triangle, square, rectangle, pentagon五边形, hexagon六, octagon八,Parallelogram平行四边形 three-dimensional figures: sphere cube cone cylinder rectangular prism-长方体 triangular prism perimeter -周长 fraction -分数
To slide a shape means to move it along a line. To flip a shape means to move it over a line. To turn a shape means to move it around a point.