| The ABCÕs of Math |
| Area Area is the size a surface takes up measured in square units. We find the area a rug covers on the floor. |
| Bar Graph It uses bars to show how much of something. They can easily compare numbers. |
| Congruent All sides and angels are the same and it is the same size. |
| Divisor A number that will divide the dividend. A divisor is an equation like four puppies divided by two. |
| Equilateral Equilateral is a triangle with three equal sides and three equal angles. You would see one as a yield sign. |
| Factor Factor a whole number that divides exactly another number. If there are six cookies I will tell you the factors. 1and 2 are factors of 6 and so is 3. |
| Gallon Standard unit of capacity for measuring liquids. We measure milk in gallons. |
| Hexagon A polygon with six sides. The tiles show hexagons. |
| Isosceles Triangle |
| Join It is to put or bring together so as to make continuous. All the states join together to make our country. |
| Kilometer Standard metric unit for measuring distance. You see this on the highway in United Kingdom instead of miles. |
| Line Segment |
| Mean The mean is the average of a number of different amounts. The average in Rhode Island January the temperature is 29 degrees F. |
| Obtuse Angle Any angle between 90 degrease and 180 degrease. Sometimes the hands on a clock are an obtuse angle. |
| Perimeter Distance around the outside of a shape. A fence can go around the edge of a field. |
| Quadrilateral It is a polygon with four sides. You would see it at the supermarket. (A box of Junior Mints) |
| Rhombus Rhombus is a parallelogram with four equal sides and equal opposite angles. A baseball infield is a rhombus because it has four equal sides. |
| Similar Figures Two shapes are similar if they have the same shape but different sizes. These coffee cups are the same shape but a different size so they are similar. |
| Turn To turn is to rotate around a point. A wheel on a car turns when you drive it. |
| Vertex Point where surfaces meet (corner). Like on the corners of a stop sign. |
| Whole Number A counting number from 0 to infinity. We use whole to count. |
| "X-Axis" |
| Year The time it takes the earth to completely orbit the sun, equal to 12 months, 52 weeks or 365 days. We can use a calendar to measure a year. |
| Zero |