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Math Focus of the Week

During first grade, students will participate in a math program called Story of Units.  The Story of Units consists of 6 modules.  You may click on the link below to view each module.


Modules 1-6

For the week of 3/12/2018, we will complete Topic A and begin Topic B in Module 4

Module 4 builds upon Module 2’s work with place value within 20, now focusing on the role of place value in the addition and subtraction of numbers to 40. Students study, organize, and manipulate numbers within 40.  They compare quantities and begin using the symbols for greater than (>) and less than (<). Addition and subtraction of tens is another focus of this module as is the use of familiar strategies to add two-digit and single-digit numbers within 40.  Near the end of the module, the focus moves to new ways to represent larger quantities and adding like place value units as students add two-digit numbers.

Overview of Module 4

The module opens with Topic A, where students study, organize, and manipulate numbers within 40. Having worked with creating a ten and some ones in Module 2, students now recognize multiple tens and ones. The topic closes with the identification of 1 more, 1 less, 10 more, and 10 less as students learn to add or subtract like units (1.NBT.5).

In Topic B, students compare quantities and begin using the symbols for greater than (>) and less than (<) (1.NBT.3). Students demonstrate their understanding of place value when they recognize that 18 is less than 21 since 2 tens already have a greater value than 1 ten 8 ones. To support understanding, the first lesson in the topic focuses on identifying the greater or lesser amount. With this understanding, students label each of the quantities being compared and compare from left to right. Finally, students are introduced to the mathematical symbols using the story of the alligator whose hungry mouth always opens toward the greater number. The abstract symbols are introduced after the conceptual foundation has been laid.

Topic C focuses on addition and subtraction of tens (1.NBT.4, 1.NBT.6). Having used concrete models in Topic A to represent 10 more and 10 less, students now recognize that just as 3 + 1 = 4, 3 tens + 1 ten = 4 tens. With this understanding, students add and subtract a multiple of 10 from another multiple of 10. The topic closes with the addition of multiples of 10 to numbers less than 40 (e.g., 12 + 30).

In Topic D, students use familiar strategies to add two-digit and single-digit numbers within 40. Students apply the Level 2 strategy of counting on and use the Level 3 strategy of making ten, this time making the next ten (1.NBT.4). For instance, when adding 28 + 5, students break 5 into 2 and 3 so that 28 and 2 can make the next ten, which is 30, or 3 tens, and then add 3 to make 33. The topic closes with students sharing and critiquing peer strategies. In Topic E, students consider new ways to represent larger quantities when approaching put together/take apart with total or addend unknown and add to with result or change unknown word problems. Students begin labeling drawings with numerals and eventually move to tape diagrams to represent the problems pictorially (1.OA.1). Throughout this topic, students continue developing their skills with adding single-digit and double-digit numbers (introduced in Topic D) during fluency activities.

Image result for less than greater than equal to

Image result for less than greater than equal to

Image result for longer than and shorter than


                                            Addition Strategies

Additional useful links...






More or Less Race

Rabbit Fun

Study Ladder



Addend Matching Game

Missing Addend Card Game

Math Quiz ABCya

Math Match ABCya

Addition | Math Dojo

Fun 4 the Brain Addition

Soccer Game | Addition and Subtraction

Shoot Out | Addition and Subtraction



Dinosaur Place Value

Place the Penguins

Shark Game | Tens and Ones

Shooting Fruit Game | Place Value

Racing | Place Value



Stop the Clock | Hour

Stop the Clock | Half Hour

What time is it? | Multiple Choice Quiz

Elapsed Time | Enrichment

Practice using an analog clock by CLICKING HERE.



Crossing the River 

Turtle Diary Fractions

Fractions Video | BrainpopJR

learning games for kids


These are links to graph and tally chart games and activities:

Tally Chart Questions

Pet Questions | Lesson


IXL | All Concepts

Math Blaster | For Home




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