Content Area: Math

 

Index: 4.1A Grade 3 CPI 6

 

Standard: 4.1 - Number and Numerical Operations

 

Strand: A - Number Sense

 

Cumulative Progress Indicator: 6 -  The student will compare and order numbers.

 

Grade: 3

 

Sample Activities:

 

·        Students use base-ten materials such as, blocks, sticks or money to make models of pairs of 3- or 4-digit numbers like 405 and 450 and compare them to see which is larger. Responses and reasons can be written in a journal.

 

·        Students play Guess the Point. A long number line with endpoints of 130 and 470, for example, is drawn on the board with the intermediary points labeled as multiples of ten above the line. The labels are then covered by a long piece of butcher paper that can be lifted to reveal them. A student places a finger somewhere on the line and others must estimate the numerical label of the point chosen. The paper is then lifted to check the accuracy of their responses.

 

·        Pairs of students play Hi-Lo with whole numbers and decimals. One student thinks of a number within a given range such as 1 to 1000. The other student tries to guess the number, receiving feedback after each guess as to whether the guess was too high or too low, and keeping a written record of the guesses and the feedback. The goal is to find the number using as few guesses as possible.

 

·        When using Cuisenaire Rods, students choose a base rod to represent one whole, and then determine the values of all of the rest of the rods. They then use the rods to model the comparison of the relative sizes of two fractions with different denominators.