CK-12.org's kindergarten math textbook

Ck-12.org's Kindergarten math textbook (5 years old) - a view by k-12math.info
Information | return to proposed CK-12 k-5 math screen

The views expressed on this page are strictly that of k-12math.info and NOT those of CK-12.org or its foundation.

The following terms appear in this grade level's materials. At this grade level the terms are used within one or more examples or illustrations. The purpose is to begin to develop the basic concept, which will be more formally developed in coming grades.
ADDITION (WHOLE NUMBER)	LENGTH	SUBTRACTION
CIRCLE	MEASUREMENT (LENGTH)	SYMBOLS FOR ADDITION
CONCEPT OF ZERO	RECTANGLE	THREE DIMENSION
CONE	SHAPE	TRIANGLE
COUNTING	SIZE	WEIGHT
CUBE	SPHERE	WRITING NUMBERS
CYLINDER	SQUARE





A synonym of the following terms has been used. The synonym helps to bridge the learner's non mathematical experiences to mathematics terms that will more formally be worked on. A synonym may also be used because these historical terms may have been replaced by a new vocabulary (k-12math.info's list of 1,000 terms has not changed in 40 years). Wiktionary dictonary may help here.
COMPARISON (MEASUREMENT)	EQUALITY	INEQUALITY
NUMBER SENTENCE	PROBLEM SOLVING

K-12math.info selected the content that appears here. All terms appear in the lesson proper. The selection process is based upon a content analysis of 2013 to advance copies of 2015 student mathematics textbook series. Series that base their content on 2010 and/or 2012 standards. The analysis also included content that was felt would be needed for the transistion to CK-12 existing textbook series.

Editor's Note: This is a very basic outline of the content and how they are to be developed in the lesson proper. These terms need to be used in examples, illustrations, class activities and homework to help further understand them.

Resources:
Learners age 5 to 11 Grades K through 6 (from Wikieducator's "Come fly with me..." project).
Teaching OER Mathematics.
Learning design a Wikieducator.org project.

Additional observations made while collecting information for this site on unit development in a textbook:

One type has a chapter unit divided into 3 parts:
Part 1 has a written explanation of the concept being developed (or defined).
Part 2 has examples and illustrations of the concept.
Part 3 classroom and/or homework activities.

Another approach consists of 2 parts:
Part 1: the concept being developed (or defined) is being used in several carefully designed examples and illustrations.
Part 2: classroom and/or homework activities.