**The main focus for these weeks will be addressing Number Sense 1.1 and the Key Standard ****1.2** as well as several Mathematical Reasoning Key Standards. The extension activities address Number Sense 1.3 and the Key Standard** 1.5**.

**February 11** - Lincoln's Day

**Main Activity**

Interactive Mathematics Text

**p. 19** Save My Place

*This activity includes working with decimals, division, and mathematical reasoning.*

*Alignment to CA Mathematics Standards:*

**Number Sense**

1.1 read, write and compare rational numbers in scientific notation (positive and
negative powers of 10), approximate numbers using scientific notation

**1.2** add, subtract, multiply and divide rational numbers, integers, fractions and decimals and take rational numbers to whole number powers

**Mathematical Reasoning**

**1.1** analyze problems by identifying relationships, discriminating relevant from irrelevant information, identifying missing information, sequencing and prioritizing information, and observing patterns

**1.2** formulate and justify mathematical conjectures based upon a general description of the mathematical question or problem posed

**2.4** make and test conjectures using both inductive and deductive reasoning

**2.7** indicate the relative advantages of exact and approximate solutions to problems and give answers to a specified degree of accuracy

**Extensions**

MAC Text

**pp. 71-74** - Dividing Decimals

**pp. 48-63** - Decimals

**pp. 154-156** - Fractions and Decimals

**pp. 67-67** - Scientific Notation

*Alignment to CA Mathematics Standards:*

**Number Sense**

1.3 convert fractions to decimals and percents and use these representations in estimation,
computation and applications

**1.5** know that every fraction is either a terminating or repeating decimal and be able
to convert terminating decimals into reduced fractions representations of a decimal

**Problem of the Week** - pp. 190-196 - Unit 11 - number patterns and operations

*On the first Wednesday of the month students will have a reading activity in class. They will read the different POWs in their text and select one to work on for that week.*

*Alignment to CA Mathematics Standards:*

**Mathematical Reasoning**

**1.1** analyze problems by identifying relationships, discriminating relevant from irrelevant information, identifying missing information, sequencing and prioritizing information and observing patterns.

**1.2** formulate and justify mathematical conjectures based upon a general description of the mathematical question or problem posed.

**1.3** determine when and how to break a problem into simpler parts.

**2.4** make and test conjectures using both inductive and deductive reasoning

**2.5** use a variety of methods such as words, numbers, symbols, charts, graphs, tables, diagrams and models to explain mathematical reasoning.

**2.6** express the solution clearly and logically using appropriate mathematical notation and terms and clear language, and support solutions with evidence, in both verbal and symbolic work.

**3.1** evaluate the reasonableness of the solution in the context of the original situation

**3.2** note method of deriving the solution and demonstrate conceptual understanding of the derivation by solving similar problems.

**Resources**

**Assessment**
- Students will demonstrate ability to divide decimals.
- Students will read, write and compare rational numbers in scientific notation.
- Students will convert fractions to decimals and percents and use these representations in estimation, computation and applications.
- Students will know that every fraction is either a terminating or repeating decimal and be able
to convert terminating decimals into reduced fractions representations of a decimal.

**The main focus for these weeks will be addressing Measurement and Geometry 2.3 as well as several Mathematical Reasoning Key Standards. The extension activities address Measurement and Geometry 2.4.**

**February 21** - President's Day

**Main Activity**

Interactive Mathematics Text

**p. 20** Finders Keepers

*This activity includes concepts of length, width, height, area, volume and rectangular solids.*

Constructing Rectangular Prisms

This will be available as an **ESCOT Runner** problem. The activity is called Cube/Rectangular Prism Activity

*Alignment to CA Mathematics Standards:*

**Measurement and Geometry**

2.3 compute the length of the perimeter, the surface area of the faces, and the volume of a 3-D object built from rectangular solids. They understand that when the lengths of all dimensions are multiplied by a scale factor, the surface area is multiplied by the square of the scale factor and the volume is multiplied by the cube of the scale factor

**Mathematical Reasoning**

**2.2** apply strategies and results from simpler problems to more complex problems

**2.4** make and test conjectures using both inductive and deductive reasoning

**2.5** use a variety of methods such as words, numbers, symbols, charts, graphs, tables, diagrams and models to explain mathematical reasoning

**2.8** make precise calculations and check the validity of the results from the context of the problem

**Extensions**

MAC Text

**p. 394-397** - Volume of Prisms

*Alignment to CA Mathematics Standards:*

**Measurement and Geometry**

2.4 relate the changes in measurement under change of scale to the units used (e.g., square inches, cubic feet) and to conversions between units (1 square foot = 12 square inches, 1 cubic inch = 2.54 cubic centimeters)

**Resources**

**Assessment**
- Students will demonstrate understanding of length, width, height and volume of a rectangular solid.
- Students will demonstrate understanding that when the lengths of all dimensions are multiplied by a scale factor, the surface area is multiplied by the square of the scale factor and the volume is multiplied by the cube of the scale factor.