Find here many important first grade math concepts taught in first grade.  Teachers, parents, and math tutors can also use them as a guideline to illustrate a math lesson or to teach important skills that kids are supposed to know in first grade math.

 Equal parts or equal sharesThe orange circle has 2 equal parts.The blue circle has 4 equal parts ArraysThe first array is made of soccer balls.The array has 2 rows and 3 columns.2 × 3 = 6 ballsThe second array is made of squares.The array has 3 rows and 4 columns.3 × 4 = 12 squares QuarterQuarter = one-fourth = 1 of 4 equal parts Associative property Closed figureAll sides of a closed figure are connected. Hour handThe hour hand takes 1 hour to move from a number to the next. Hour or hr = 60 minutes. EstimateAn estimate is not the same as an exact answer. We just need a number close to the exact amount. To estimate the number of marbles, we just need to know about how manyPossible answers: 15, 14, or 17 Commutative propertyWhether 2 is written first or not, the answer to 2 + 1 is still 3 2-dimensional figures Types of clocks Cube:A cube has 6 faces, 12 edges and 8 vertices. The cube on the right shows 3 faces with the color red, blue, and orange. Multiple of 10 Counting upStart at 3 and count 2 more to reach 5. NumberA number indicates how many or how much. A numeral is used to represent the number of objects. For example, after counting the pencils on the right, we get 4. We use the numeral 4 to represent 4 pencils. 3-dimensional shapes.3 dimensional shapes are solid shapes that have width, length, and height. Make 10 Minute handThe minute hand takes 5 minutes to move from a number to the next. Minute = seconds. DifferentThe two triangles are different, but they have the same shape. Counting downStart at 6 and count backward to reach 2. Composite shapeThe arrow on the right is a composite shape since it is made from 2 basic shapes ( a triangle and a rectangle) Collecting data ExpressionAn expression has no equal sign Coins1 penny = 1 cent1 nickel = 5 cents1 dime = 10 cents1 quarter  = 25 cents2 dimes + 1 quarter + 3 nickels = 60 cents EquationEquation always have an equal sign. The amount on the left side is equal to the amount on the right side. ## Recent Articles 1. ### High School Math Teacher

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