Notes
An important note for Unit 2 and Unit 3- 5th grade students must be able to give their answers in simplest form. I will include a few videos on changing improper fractions to mixed/whole numbers and simplifying fractions.
Focus TEKS:
- 5.3A estimate to determine solutions to mathematical and real-world problems involving addition, subtraction, multiplication, or division
- 5.3I represent and solve multiplication of a whole number and a fraction that refers to the same whole using objects and pictorial models, including area model
- 5.3J represent division of a unit fraction by a whole number and the division of a whole number by a unit fraction such as 1/3 ÷ 7 and 7 ÷ 1/3 using objects and pictorial models, including area model
- 5.3L divide whole numbers by unit fractions and unit fractions by whole numbers
- 5.3K add and subtract positive rational numbers fluently
Important Information
- Students will be multiplying a fraction with a whole number. Ex: 3 x 5/8 or 5/8 x 3
- Students will be dividing a UNIT fraction (a fraction with 1 as the numerator) by a whole number. Ex: 1/4 divided by 7
- Students will be dividing a whole number by a UNIT fraction ( a fraction with 1 as the numerator). Ex: 6 divided by 1/2
- When multiplying a whole number by a fraction, students need to think of the "x" sign as saying "groups of". For example: 5 x 3/4 is read as 5 "groups of" 3/4.
- When multiplying a fraction by a whole number, students need to think of the "x" sign as saying "of". For example: 2/3 x 6 is read as 2/3 "of" 6.
- Students will be tested using the algorithm and models to multiply or divide, and also matching an equation to the correct pictorial model.
- Remember, all answers to fraction problems must always be answered in simplest form.