Math Mammoth Grade 7-B Worktext: 2025 edition (b&w)

Math Mammoth Grade 7-B Worktext (2025 edition) is the second student book for 7th grade mathematics, and part of the Math Mammoth Grade 7 Curriculum (pre-algebra).Please note: this is the black-and white version, with grayscale interior pages.Being a worktext means that the book contains both the instruction (the "text") as well as the exercises (the "work"), all written directly to the student. This makes it where many students can study independently from the book.FeaturesMath Mammoth focuses on conceptual understanding. It explains the "WHY", so your children can understand the math, not just learn "HOW" to do it.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.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.Very little teacher preparation is required. Concepts are often explained with visual models, followed by exercises using those models.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.This book, student worktext 7-B, covers ratios and proportions (chapter 6), percent (chapter 7), geometry (chapter 8), probability (chapter 9), and statistics (chapter 10). The rest of the topics are covered in the 7-A worktext.Part B starts out with a study of ratios and proportions (chapter 6). Students study unit rates, proportions, proportional relationships, scale drawings, and floor plans.The next chapter provides thorough lessons on the concept of percent. Students learn to solve a wide variety of problems involving percentages, including percentage of change and simple interest problems.Geometry is our focus in chapter 8. Students draw geometric figures with given conditions (e.g. a triangle with 60° and 50° angles and a 6-cm side), and they also learn some basic geometric constructions. The other themes of this chapter are various angle relationships, area and the perimeter of a circle, conversions between units of area and of volume, surface area, volume, and cross-sections when solids are sliced with a plane.Chapter 9 is an introduction to probability. Besides learning the basic idea behind probability as the ratio of favorable events to all possible events, students compare experimental probabilities to theoretical ones in probability simulations and even design some on their own.Lastly, in chapter 10, the curriculum covers statistical concepts. The major areas of study are random sampling and learning to compare two populations using some basic statistical measures and graphs.The first half of 7th grade mathematics is covered in the Math Mammoth Grade 7-A Worktext, available separately. Also available separately is an answer key book, and a book containing chapter tests and additional cumulative review lessons.Math Mammoth Grade 7 Curriculum is considered a pre-algebra curriculum, and after that, most students can go to high school math. If your student will benefit from a slower pace with typical algebra 1 concepts, then I recommend Math Mammoth Grade 8 Curriculum. Read more