Four levels of activity sheets present problem solving as part of a tic-tac-toe game. The problems involve addition, subtraction, multiplication, and division appropriate to the level. (MP)

Suggestions are given for activities to use to introduce common and decimal fractions. Models are used initially and symbols are introduced slowly. Decimals are related to common fractions. (MP)

Several problems that can be used with calculators are provided. Teaching tips and references are included. (MNS)

Using the two posters in this article, students are to search for patterns as a way of counting different types of squares and cubes obtained from a larger square or cube that is printed on the outside edge or surface. (MP)

Problems were developed by third graders involving holiday customs in one of the countries of their ancestors. Eight sample problems are included. (MNS)

These activities involve students in interpreting story problems, drawing their own conclusions, and making guesses. Four worksheets, for levels 1-8, are included, along with teaching suggestions. (MNS)

Given are activities involving the use of triangles and triangle paper, in the form of problems that require searching for different possibilities to fit a given condition. (MP)

This section presents four worksheets for grades 1-8 on problem-solving activities with a "things to do this summer theme." Problems relate to a county fair, a library summer reading program, camp, and summer jobs. (MNS)

The focus here is on the students' uses for numbers in both school and home settings. The included activities emphasize a growth and development theme involving various aspects of data collection, data interpretation, probability, and statistics. Also included are parent-child extended activity worksheets. (JJK)

Presented are activities which give practice in making estimates, gathering data, and checking the reasonableness of results. (TG)

Describes seven number-sense skills for elementary and middle school grades. Provides eight short stories for grades three through eight designed to develop students' number-sense skills in which students replace missing data so that the story makes sense. (MDH)

Describes the method to solve problems called T-E-M-T-T: trial, error, and modified trial through technology. The method integrates students' skills of estimation, mental computation, and appropriate choice of calculator use. Includes 2 activities for each of grades K-4 and 5-8 that illustrate the method. (MDH)