By McGraw-Hill Education

ISBN-10: 0335221173

ISBN-13: 9780335221172

Funded by way of the nationwide technological know-how beginning, *Core-Plus Mathematics* is a four-year, international-like highschool arithmetic application that aligns good with the typical center nation criteria for arithmetic, together with the criteria of Mathematical Practice.

Each path good points coherent, attached devices that boost pupil figuring out and talents in algebra and services, geometry and trigonometry, information and chance, and discrete mathematics.

The sequence builds at the topic of *mathematics as sense-making*. via problem-based investigations that includes sensible contexts, scholars strengthen a wealthy and hooked up realizing of significant arithmetic that is sensible to them.

- This new second version encompasses a colourful lesson design
- Earlier improvement of algebraic topics
- Expanded use of technology
- Pre-requisite abilities evaluation in each lesson
- Unit source Masters
- A full-volume scholar version to be had in print, CD-ROM, and on-line formats.

**Read or Download Core-Plus Mathematics - Contemporary Mathematics In Context, Course 3 PDF**

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**Extra resources for Core-Plus Mathematics - Contemporary Mathematics In Context, Course 3**

**Example text**

D As the truck bed is raised or lowered, will it always remain parallel to the flat-bed frame of the truck? Explain your reasoning. In this lesson, you will explore how from a few basic assumptions you can prove important properties of angles formed by intersecting lines and by two parallel lines intersected by a third line. I nvesti nvestigg ation 1 Reasoning about Intersecting Lines and Angles Skill in reasoning, like skill in sculpting, playing a musical instrument, or playing a sport, comes from practicing that skill and reflecting on the process.

Summarize the Mathematics In this investigation, you reasoned both inductively and deductively about angles formed by parallel lines and a transversal. a What statements did you accept to be true without proof? b What theorems and their converses were you able to prove about parallel lines and the angles they form with a transversal? c Restate each theorem and its converse in Part b as a single if-and-only-if statement similar to the statement of the Parallel Lines Postulate. Be prepared to compare your responses with those of others.

Connections 9 When two lines intersect, two pairs of vertical angles are formed. a. How many pairs of vertical angles are formed when three lines (in a plane) intersect at the same point? b. How many pairs of vertical angles are formed when four lines (in a plane) intersect at the same point? c. Suppose a fifth line was added to a diagram for Part b and the line intersected the other lines at the same point. How many additional pairs of vertical angles are formed? What is the total number of pairs of vertical angles formed by the five lines?

### Core-Plus Mathematics - Contemporary Mathematics In Context, Course 3 by McGraw-Hill Education

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