# Math Mammoth Grade 5-B Worktext (Paperback)

**Math Mammoth Grade 5-B Worktext** covers the second half of fifth grade mathematics studies. In part 5-A, students have studied the four operations with whole numbers, large numbers, problem solving, decimal arithmetic, and statistical graphs. In this part, 5-B, we study more about decimals, a lot about fractions and fraction arithmetic, and geometry.

Chapter 6 continues our study of decimals. The focus is on multiplying decimals by decimals,

dividing decimals by decimals, and conversions between measuring units.

Chapter 7 covers the addition and subtraction of fractions--another topic of focus for 5th grade,

besides decimals. The most difficult topic of this chapter is adding and subtracting unlike fractions, which is done by first converting them to equivalent fractions with a common denominator.

In chapter 8, we study the multiplication and division of fractions from various angles.

Chapter 9 takes us to geometry, starting with a review of angles and polygons. From there, students will learn to draw circles, to classify triangles and quadrilaterals, and the concept of volume in the context of right rectangular prisms (boxes).

**Features**

- Math Mammoth focuses on
**conceptual understanding**. It explains the "WHY", so your children can understand the math, not just learn "HOW" to do it. - Concepts are often explained with
**visual models**, followed by exercises using those models. These visual models can take the place of manipulatives for many children; however, it is very easy to add corresponding manipulatives to the lessons if so desired. - The curriculum is
**mastery-oriented**. This means it concentrates fairly long on a topic, delving into its various aspects. This promotes conceptual understanding, as opposed to spiral curricula that often tend to jump from topic to topic too much. - There is a strong emphasis on
**mental math and number sense**. **Very little teacher preparation**is required.- The curriculum has no separate teacher's manual nor is it scripted. The introduction to each chapter has some notes for the teacher concerning the material in the chapter. All the instruction is written directly to the student in the worktext, and there also exist accompanying videos where you can see Maria herself teach the material.
- After each chapter introduction, you will find a list of Internet links and resources (games, quizzes, animations, etc.) that can be used for fun, illustrations, and further practice.

Please note: this is the full color version, 2020 edition. It does not include answers (the answer keys are available separately).