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TOPIC 13: Whole Numbers and Fractions on Number Line SAM MKUMBO THIRD GRADE Vocabulary Number Line: A line with numbers that are all equally placed in their correct position. Vocabulary Whole number: is one that has no fractions, decimals or negatives . Example ( 1, 2, 3, 4…) Mixed number: has a whole number plus a fraction. Example 6 1/2 Bar graph: is a chart that uses bars to show the quantity. Vocabulary Fraction: When an object is divided into number parts then each part is called a fraction ex.1/4 - The Top is called Numerator and the bottom is called Denominator. N D items questioned total, total, total 13-00 Whole Numbers and Fractions on a Number Line There are different types of number lines. Number lines-: Are used for measurement, comparison of numbers/fractions etc. Have whole numbers and mixed numbers. Goes on forever so there is no greatest number. Topic 13-01:Understanding Number lines Each number on a number line has its own point. Zero is the least whole number on the number line. The numbers increases in value as you move from left to right. Topic 13-02:Patterns on the Number Line You can identify the pattern on a number line or graph scale, and calculate missing labels. Equal distances show equal differences in the numbers. The scales on some bar graphs are used as number line. Topic 13-02:Patterns on the Number Line You can skip count on a number line to find the pattern. A number line can be used to find the missing number . 13-03 Locating Fractions on a Number Line Number line have fractions and mixed number. You can use mixed numbers and fractions to name points on a number line. 13-04: Comparing Fractions on a Number Line The fraction and the number farther to the right is the greater fraction/number. 1¼ < 1¾ 13-05: Problem Solving-:Missing or Extra Information Mark bought a jacket, a pen and a ball, he spent $20 on a pen and a ball, He started with $60,how much did he have left? You can not solve the problem without the missing information. A pen + a ball= $20 < -------------60------------> $20 spent Jacket? Left?