Everyday MathematicsUnit Two-Estimation and Computation

Content Objectives andLanguage Objectives

Lesson 2.1Content Objective: Students will devise an

estimation strategy to solve a problem for which finding an exact answer is impossible.

Language Objective: Students will discuss in partners how to make the best estimate and then defend it.

Lesson 2.2Content Objectives: Students will review

place-value concepts for whole numbers and decimals, and will add using the partial-sums and column-addition methods.

Language Objectives: Students will read about place values (p.29) and partial-sums & column-addition (p. 13)in the SRB, and students will write examples of the partial-sums and column-addition methods in their math journals.

Lesson 2.3Content Objective: Students will subtract

multi-digit whole numbers and decimals by using the trade-first and partial-differences methods.

Language Objectives: Students will read how to subtract using the trade-first (p. 15) and partial differences (p. 17) methods in the SRB as well as how to play the Top-It Game (p. 294).

Lesson 2.4Content Objective: Students will review a

guide for solving number stories and concepts about number sentences.

Language Objective: Students will use and write open sentences as aids in solving number stories.

Vocabulary: variableSymbols (See next slide)

3 + 5 = ?

SymbolsRelation Symbols: < means less than

> means is greater than=means is equal to

Operation Symbols: + means plus- means minusx or * means times÷ or / means divided by

Lesson 2.5Content Objective: Students will review

statistical landmarks for sets of data and estimate reaction times.

Language Objectives: Students will speak the Stand out Math chants for vocabulary, read about the “mean” in the SRB (p. 115), and use statistical landmarks to write and describe experimental data.

Vocabulary: mean (or average), minimum, maximum, range, mode, median

Lesson 2.6Content Objective: Students will be

introduced to the probability meter and estimate the probability of an event.

Language Objectives: Students will listen, review, and apply vocabulary associated with chance events, and will review the Stand Out Math chant for “probability”.

Lesson 2.7Content Objective: Students will make

magnitude estimates for products of multi-digit numbers including decimals.

Language Objectives: Students will discuss in teams how to make magnitude estimate using multiplication and will read how to play multiplication Bull’s-eye in the SRB (p. 284).

Lesson 2.8Content Objectives: Students will use the

partial-products method to multiply multi-digit whole numbers and will be introduced to products of decimals.

Language Objective: Students will read about the partial-products method (p. 19) and the multiplication of decimals (p. 38) in the SRB.

Lesson 2.9Content Objective: Students will review and

practice the lattice method for multiplication of whole numbers and decimals.

Language Objectives: Students will discuss, listen, read, and write about the lattice method of multiplication in teams.

Lesson 2.10

Content Objectives: Students will begin to understand the relative sizes of 1 million, 1 billion, and 1 trillion; and make an informed estimate from a sample of experimental data.

Language Objective: Students will discuss the differences between a guess and an estimate, discuss what a “sample” is, and read about place values for whole numbers (p. 4 of SRB).

Lesson 2.11Content Objectives: Students will review and

be assessed on the material covered in Unit 2.

Language Objective: Students will write answers to review questions on dry erase boards as the class reviews.