Math in Focus Grade 1 

Chapter 1: Numbers to 10 

Concepts: Children use countable objects to develop the association between the physical representation of the number, the number symbol, and the number word. ( 1 = one) Besides counting the objects in a set, and crating a set with a given number of objects, children also differentiate between numbers of objects in sets a skill that forms a basis for number comparison. (3 is greater than 2 or 4 is more than 3) 

Vocabulary Words : Numbers: zero, one, two, three, four, five, six, seven, eight, nine, ten, same (equal to), more, fewer, and pattern(a sequence that is repeated) 

Web Resources 

Count to 10 Practice: 

Greater Than and Less Than: 





Chapter 2: Number Bonds 

Concepts: Number bonds can be used to show parts and whole. (For example, 1 and 2 make 3, so 1, 2, and 3 make a number bond.) This partwhole analysis forms the basis for the concept of adding two numbers to get another number (addition 1 + 2 = 3) 

Vocabulary Words : part, whole, number bond 

Web Resources 




Chapter 3: Addition Facts to 10 

Concepts: Children add by counting on and by using number bonds. Children learn to construct addition stories from pictures and solve realworld problems by writing addition sentences. 

Vocabulary Words: Add (put together two or more parts to make a whole); plus (+)(the symbol used to show adding); equal to (=) ( having the same amount or number); addition sentence (an arithmetic expression involving the addition operation; for example 1 + 2 = 3); more than (means to add on to); addition story (a realworld situation represented by one or more addition sentences). 

Web Resources 

Number Line (Click on number line) 

Addition Facts to 10 IXL.com 

Songs: Plus Sign 





Other items to check out: 


Chapter 4:Subtraction Facts to 10 

Concepts : Children use strategies, such as the takeaway concept, number bonds, counting on, and counting back, to identify and learn subtraction facts. They write subtraction sentences to represent familiar situations, and begin to see the inverse relationship between addition and subtraction by using number bonds. 1 + 2 = 3 so 3  1 = 2 

Vocabulary Words : take away (remove or subtract); subtract (take away or remove); minus () (the symbol used to show subtraction);subtraction story (a word problem that is solved using a subtraction sentence); fact family (a group of addition and subtraction sentences that have the same parts and whole; for example: 1+2=3, 2+1= 3, 32=1, and 31= 2) 

Web Resources 

Understanding Subtraction 

Subtraction Games 

Fruit Shoot Subtraction (click on Level 1) 


Songs:Minus Sign 

Using a Numberline 



Other Interesting Websites: 


Chapter 5: Shapes and Patterns 

Concepts: Children classify and compare plane and solid shapes based on their geometric properties, using the appropriate vocabulary for describing shapes. Children make composite shapes, models, and patterns with these shapes. 

Vocabulary Words : Plane Shapes: circle, triangle, rectangle, corner, side, sort (classify), alike (the same), different (not the same) Solid Shapes: rectangular prism, cube, sphere, cone, cylinder, pyramid, stack (arrange in a pile), slide (move smoothly along a surface), roll (move by turning over and over on a surface),repeating pattern (a pattern that happens again and again) 

Web Resources 

Plane Shapes: 




Solid Shapes: 

Patterns: 


Math Puzzle 


Chapter 6: Ordinal Numbers and Position 

Concepts: Children use ordinal numbers from first to tenth to describe order and position of objects or people. Children use positional words to enhance their sentences. 

Vocabulary Words : ordinal numbers: first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, and tenth; positional words: before, after, between, under, below, behind, next to, in front of, up, down, left, right, far, and near 

Web Resources 

Ordinal Numbers 





Positional Words 


Chapter 7: Numbers to 20 

Concepts: Children count to 20 using pictorial representations of concrete objects. Children recognize numbers 1020 as one group of ten and a particular number of ones. Children compare numbers and establish number relationships such as greater than and less than. Children identify number patterns from these number relationships and extend the patterns. 

Vocabulary Words: Numbers: eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty; placevalue chart (a chart that shows how many tens and ones are in a number), greatest (highest in value), least (lowest in value), and order (arrange in a sequence from least to greatest or greatest to least) 

Web Resources 



Chapter 8: Addition and Subtraction Facts to 20 

Concepts: Children apply strategies, such as grouping into a ten and ones, number bonds, and using doubles facts to add and subtract. They use addition and subtraction sentences to solve realworld problems. 

Vocabulary Words : group (a set of objects or people), same (alike or equal), doubles facts (the numbers that are added together are the same: 1+1=2, 2+2=4, 3+3= 6, etc.), doubles plus one (4+5 is 4+4 plus one more so, 4+4= 8 then 4+5= 9) 

Web Resources 

Addition 
Math Magician(Level 1) 

Sum SenseAddition 



Subtraction 
Math Magician(Level 1) 

Monkey Drive SubtractionDifficult 
Fruit Shoot Subtraction(click on Level 2) 

Addition and Subtraction 





Chapter 9: Length 

Concepts: Children compare lengths and heights using terms such as tall/taller/tallest, long/longer/longest, and short/shorter/shortest. Children use common objects as nonstandard units to measure and compare length. 

Vocabulary Words : tall, taller, tallest, long, longer, longest, short, shorter, and shortest; start line (common starting point for comparing lengths), about (approximately), and unit (units are used to measure things) 

Web Resources 




Chapter 10: Weight 

Concepts: Children compare weight using terms such as light/lighter/lightest and heavy/heavier/heaviest. Children learn to measure weight using a balance. Children use common objects as nonstandard units to measure and compare weights. 

Vocabulary Words : light, lighter, lightest, heavy, heavier, heaviest;weight (a measure of how heavy or light a thing is); as heavy as (a thing that is of equal weight), and unit (units are used to measure things) 

Web Resources 



Chapter 11: Picture Graphs and Bar Graphs 

Concepts: Children understand data presented in the form of picture graphs, tally charts, and bar graphs. Children interpret and make sense of the data from the diagrams. 

Vocabulary Words: data (Information that has numbers and can be shown in charts, tables, and graphs), picture graph (uses pictures or symbols to show data), more/fewer, most/fewest, tally mark (a tally mark / is used to record each piece of data), tally chart (shows all the data collected using tally marks); bar graph (uses the length of bars and a scale to show data) 

Web Resources 




Chapter 12: Numbers to 40 

Concepts: Children count as well as read and write numbers to 40. Children use placevalue charts to show numbers to 40. Children learn to compare and order numbers to 40 by classifying them into some tens or different tens categories. Children identify number patterns by adding or subtracting. 

Vocabulary Words: Numbers: twentyone, twentytwo, twentythree, twentyfour, twentyfive, twentysix, twentyseven, twentyeight, twentynine, thirty, and forty. 

Web Resources 

Math Magician(Level 1) 
Count Up to 30 by IXL 

Chapter 13: Addition and Subtraction to 40 

Concepts: Children add and subtract with and without regrouping. Children add three 1digit numbers. Children solve realworld problems involving addition and subtraction. 

Vocabulary Words: count on (count on from the greater number to find how many in all; for example: 55+4= you would start with 55 and count on 56, 57, 58, 59, so 59 is the answer) placevalue chart( shows how many tens and ones are in a number); regroup (you regroup when you change 10 ones to 1 ten or 1 ten is changed to 10 ones); count back (count back from the greater number to find how many fewer; for example: 554=, you start with 55 and count back four 54, 53, 52, 51, so the answer is 51) 

Web Resources 

Addition Without Regrouping 
Speed Grid Challange(Difficult) 

Addition With Regrouping 


Subtraction Without Regrouping 

Fruit Shoot Subtraction(click on Level 4 or 6) 

Subtraction With Regrouping 
Fruit Shoot Subtraction(click on Level 5 or 7) 


Adding Three Numbers 



Chapter 14: Mental Math Strategies 

Concepts: Children can add mentally by using doubles facts, and the strategies of add the ones or add the tens. Children subtract mentally by recalling number bonds, and using the strategies ofsubtract the ones or subtract the tens. 

Vocabulary Words: mentally means solving a problem in your head without using pencil and paper; doubles fact is an addition fact in which the two addends are the same, like 8+8= 16. 

Web Resources 

Power Lines (very difficult) 







Chapter 15: Calendar and Time 

Concepts: Children learn to read a calendar in terms of the days of the week and the months of the year. Children learn to write the date. Children learn to read and show time to the hour and the half hour. 

Vocabulary Words: Calendar: a calendar shows the days, weeks, and months of a year. Days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday. Week: is a sequence of seven days. Month: is a sequence of 28 to 31 days. Year: is a sequence of twelve months in a year. Date: is written as July 4, 2013 pr 7/4/13. Warmer: Summer is warmer than spring. Colder: winter is colder than autumn. Seasons: spring, summer, fall, and winter. O'clock: when the minute hand is at 12, you tell the time as o'clock. Minute hand: the long hand on an analogue clock. Hour hand: the short hand on an analogue clock. Half past or half hour: when the minute hand is at 6, you tell the time as half past the hour. 

Web Resources 

Learning About Time 



Time Games 







Chapter 16: Numbers to 100 

Concepts: Children learn to count on, read, and write number beyond 40. Children learn to represent numbers to 100 using placevalue charts. Children learn strategies to compare numbers to 100. Children learn to identify number patterns with numbers to 100. 

Vocabulary Words: fifty (50), sixty (60), seventy (70), eighty (80), ninety (90), and one hundred (100); Estimate: about how many, not exactly how many. Number line: A line with numbers arranged in order to form a regular pattern. A number line can be used to count on and back. 

Web Resources 

Chapter 17: Addition and Subtraction to 100 

Concepts: Children learn to add with and without regrouping. Children learn to subtract with and without regrouping. 

Vocabulary Words: Regroup: You regroup when you change 10 ones to 1 ten or 1 ten to 10 ones. 

Web Resources 

Base Blocks Addition (Use only two columns, not four) 

Base Blocks Subtraction (Use only two columns, not four) 











Chapter 18: Multiplication and Division 

Concepts: Children add the same numbers to understand the concept of multiplication. Children distribute items equally to understand the concept of sharing equally. Children distribute items into equal groups to understand the concept of diving into equal groups. 

Vocabulary Words: Share: To divide a number or amount into smaller numbers or amounts. Equally: Having the same number or amount. 

Web Resources 

Camel Times Table Choose medium level 
Division MineChoose medium level 














Chapter 19: Money 

Concepts: Children learn about the penny, nickel, dime, and quarter. Children count the value of the coins. Children add and subtract money in realworld problems. 

Vocabulary Words: Cents: a unit of money. Penny: a coin with the value of one cent. Nickel: a coin with a value of 5 cents. Dime: a coin with the value of 10 cents. Quarter: a coin with a value of twentyfive cents. Value: how much money a coin is worth.Exchange: to give or trade something for equal value. Change: the money you get back when you pay for something. 

Web Resources 

Adding Money: 



Other Useful Websites: 
