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www.mathseeds.com/schools

Designed to build students’ understanding

of math concepts through fun online

lessons and activities

Designed to build students’ understanding

of math concepts through fun online

lessons and activities

Mathseeds is an interactive web-based program that

incorporates a huge range of highly structured and

effective research-based activities. It combines rigorous

learning with high-interest activities, taking into

consideration the needs, learning styles, and interests of

students in Grades K–2. Mathseeds has been built on

best practices in pedagogical research alongside core

curriculum initiatives, creating a program that is both

educationally sound and highly motivating.

The program ensures that key math concepts are learned

in depth through fun and interactive lessons and activities.

Why try Mathseeds for your students?

• It’s built to be highly intuitive and easy to use so

that your students can easily navigate all parts of

the program.

• Automated online scoring and reports provide you

with instant feedback on individual students’ progress

and achievements.

• Aligned to your state standards, including a

curriculum matrix for easy mapping.

• A comprehensive Teacher Toolkit gives you access

to a collection of detailed lesson plans and teaching

resources to help you integrate Mathseeds into your

current math program.

Mathseeds can be accessed from home on a variety of

devices, making it easy for your students to reinforce what

they have learned in school.

Program Features

This is the heart of the Mathseeds world—150 math

lessons that travel through 30 exciting maps.

Kindergarten

Lessons 1–50 teach students fundamental number skills

including number recognition, number words, and

counting. Students learn to count forwards and backwards

to 20 with condence. Addition to 10 is introduced, as well

as basic 2D and 3D shapes.

Grade 1

Lessons 51–100 teach students to count to 100, order

numbers, and identify ordinal numbers up to 10th.

Students learn to identify money (bills and coins) and

investigate fractions. Subtraction, skip counting, early

multiplication, and division are introduced.

Grade 2

Lessons 101–150 teach students to count to 1,000,

identify odd and even numbers, and round to the

nearest 10 and 100. Students also develop addition and

subtraction strategies and continue to practice grouping

and sharing. Fractions, measurement, telling time, and

data are also covered.

Grade 3 coming soon!

The Playroom

Includes more than 70 activities, ten great

songs, and a collection of number books. The

virtual playroom is where early math learners

can play with numbers, shapes, and patterns.

Buddy’s Shop

Students can spend their golden acorns on

new looks for their avatar and on decorations

for their tree house.

My Avatar

Students can create their own acorn character

with customized features and accessories.

My Treehouse

Each student has their own tree house that

they can decorate in their own style. They can

also place their lesson pets here.

Arcade

Contains eight fun math-based games that

students can play by using their golden acorns.

My Awards

Your students earn a certicate for each

map they complete, which can be printed

and displayed.

Driving Tests

The Driving Test area of the program offers

more than 300 tests that assess skills and

knowledge in numbers, operations, patterns,

geometry, measurement, and data.

Mathseeds Supports Teachers!

Mathseeds gives teachers full access to a collection of

detailed lesson plans and teaching resources to help them

easily integrate Mathseeds into their current math program.

These resources are conveniently located in the Teacher

Dashboard, making it easy to plan and set tasks for students

both in the classroom and beyond.

PLUS! Teachers have access to state standards

correlation charts, objectives and outcomes for each

lesson, research reports, technical guides, and more.

Manage your class, students, and

assignments: Seamlessly manage

your entire class and individual students

through an easy-to-use interface. You

can also manage and assign tasks and

lessons based on each student’s ability.

Lesson plans: Download detailed lesson

ideas for how to incorporate Mathseeds

into your current math program.

Digital big books: Access a collection

of big books to help reinforce key

concepts and ensure that students

understand the language of mathematics.

Downloadable worksheets: Hundreds

of worksheets that correspond with

the content and skills covered in each

Mathseeds lesson. These are perfect for

homework or extra in-class activities.

Placement test: Ensures that students

begin the program at a level that matches

their ability.

Reporting and assessment: View class

graphs and access instant feedback on

individual students’ progress on Teacher

Dashboard.

284

Mathseeds Lesson

sequence

TEACH

Content and skills

PRACTICE

Children will:

APPLY

Animated Lesson:

Add and subtract tens

Use the split strategy and the

jump strategy to add tens to a

number or take away tens from

a number.

Song: Adding Two Numbers

Together

add a group of tens to a number using

Base Ten blocks and a number line. Take

a group of tens away from a number

using a 100 chart.

Worksheet 1

Split strategy

Addition:

Fill the Ten, Add Tens,

Counting by 5s, Jumping

Beans

Make a ten to add two

numbers. Add a group of tens

to a two-digit number. Count

by ﬁves to add. Add a group to

a number to ﬁnd the total.

make ten and count how many left to

ﬁnd the total. Add tens and then ones

to ﬁnd the answer. Count groups of 5

items to ﬁnd the total. Count and add a

group to a given number.

Worksheet 2

Number lines

Operations:

Subtract Tens, Fact

Dominoes, Are They Equal?

Subtract a group of tens from

a group of tens. Complete

the related facts sums using

dominoes. Compare equations

using =, + and – symbols.

count how many tens, how many

fell over and how many left. Find the

correct domino to give the answer to

the related facts. Recognize whether

two sums are equal.

Worksheet 3

Hundred charts

Place value:

100 Chart Puzzle, Place

Value Machine

Recognize the order of

numbers in a number square.

Understand place value in

three-digit numbers.

drag the numbers to their places in the

100 chart. Use three numerals to make

the smallest possible number.

Worksheet 4

Word problems

Read:

Book

Read aloud book. listen, follow the reading and read

along.

Mathseeds book 98:

Working with tens

Learning objectives

Children will:

• add a group of tens to a two-digit number.

• take a group of tens away from a two-digit number.

• use the split strategy with Base Ten blocks.

• jump along number lines & the hundred chart.

Common Core State Standards

Number & Operations in Base Ten

Use place value understanding and properties of

operations to add and subtract.

1.NBT.C.4 Add w ithin 100, including adding a two-digit

number and a multiple of 10, using concrete models

and strategies based on place value and properties of

operations.

1.NBT.C.6 Subtract multiples of 10 in the range 10–90

from multiples of 10 in the range 10–90 (positive or zero

differences), using concrete models and strategies based

on place value and properties of operations.

Key vocabulary

+, =, numbers 1–100, tens, ones, number line, –, hundred

chart, sum, ten frame, dominoes, related facts, equal,

place value

Extra assistance

When moving to operations with two-digit numbers there

should be a progression of difﬁculty in the problems posed.

Begin with adding or subtracting a one-digit number so

the ones total stays within the decade (basic facts to 10);

then add or subtract a one-digit number involving bridging

10 (split strategy and trading). Next, have students add

and subtract tens with two-digit numbers (split and jump

strategies). Finally, put it all together with addition and

subtraction of two-digit numbers.

Classroom activities

Jump to it!

Draw a large number line on the playground from 1–100.

Ask a student to stand on a given number. Give that

student a tens number (10, 20, 30 etc) and ask them to

jump ahead that many tens to ﬁnd the total. Next have a

student choose a number and take away a tens number by

jumping back along the number line.

Count ‘em!

Give students 10 ones and 10 tens in Base Ten blocks,

plus a place value mat. Write a sum on the board adding

a two-digit number and a tens number. Have the students

put each number on the mat in blocks, then count to ﬁnd

the answer. Next, put up a subtraction with a two-digit

number minus a ten. Put the ﬁrst number on the mat and

take away the ten.

Lesson 98 • Adding and subtracting tens

285

Related Mathseeds Activities, Interactives, Apps, and Books

Lesson 98

Mathseeds Posters (for printout or IWB)

Mathseeds Library Big Books (for IWB)

Targeting Math Literacy book – Two-digit Numbers

Map 20: Madagascar

Mathseeds 1 Toolkit

Targeting Math Lower Primary

Addition (Unit 2) Subtraction (Unit 2)

Remember

Before starting each

student needs:

• sharp pencils.

• free access to concrete

materials

Lower Primary

Addition

Targeting Maths © Blake Publishing 2012.

UNIT 2

Doubling

Number lines

Make tens

Add tens and ones

Addition patterns

CONTENT DESCRIPTIONS

Number and place value: ACMNA015

Represent and solve simple addition and subtraction

problems using a range of strategies including

counting on, partitioning and rearranging parts.

Number and place value: ACMNA030

Solve simple addition and subtraction problems using

a range of efﬁcient mental and written strategies.

PROFICIENCY STRANDS

Understanding:

• The concept of adding on.

Fluency:

• Count forward to 20.

• Represent and use addition facts to 20.

• Add combination of one-digit and two-digit

numbers to 20.

• Group totals of ten to assist in adding to 20.

• Write complete number sentences using the +

and = signs.

• Use the written algorithm method to add.

Problem solving:

• Use doubling as an addition strategy.

• Look for patterns in addition.

• Use the number line to model and work addition.

LANGUAGE

numeral, number line, double, number sentence, sum,

add, Base 10 materials, algorithm, tens, ones

MATERIALS

sharp 2B pencils, coloured pencils, counters, uniﬁx

cubes, Base 10 materials

BLM CONTENT

• materials needed for each BLM

2.1 Counting – copy numerals along number lines;

count objects; work out addition equations.

2.2 Double trouble – draw an equal set of dots;

double numerals; ﬁnd the missing numeral.

2.3 Addition on the number line – use number lines

to model and work additions up to 20.

2.4 Make tens and add – add using a group of ten

ﬁrst.

2.5 Add tens and ones – use the written algorithm

and add ones and tens.

• Base 10 materials

2.6 Addition patterns – see patterns in addition facts

and recognise subtraction facts with addition facts.

• counters

2.7 Assessment

Targeting Maths © Blake Publishing 2012.

ADDITIONAL ACTIVITIES

• Continue the dragon game from page 3 with

counters to 20. Add another dragon (hoop).

Record equations, eg 6 + 4 + 7 = 17

• Toss sticks – an ancient Egyptian game.

Take four paddle-pop sticks. Colour one side of

each black. Throw them gently in the air. Look at

them on the ground and score accordingly.

One white/three black = 1 point

Two white/two black = 2 points

Three white/one black = 3 points

Four white = 4 points

Four black = 6 points

You may decide to increase the points.

• Team games using mental arithmetic or ﬂash

cards.

• Counting on games, eg ‘I start on 5 and jump

forward 9’.

• Chalk a number line to 20 on the ground and give

students an equation to jump.

ANSWERS

BLM 2.1

1 Teacher check

2 12, 14, 11, 14, 17, 19

3 a 0 b 3, 2, 1, 0 c 4, 3, 2, 1

d 5, 4, 3, 2, 1 e 6, 5, 4, 3, 2, 1

BLM 2.2

1 a 7+7=14 b 8+8=16 c 6+6=12

d 10+10=20 e 9+9=18 f 5+5=10

2 a 10 b 7 c 6 d 9 e 8 f 10

3 a 8 b 6 c 10 d 4 e 12 f 2

g 16 h 14

BLM 2.3

1 Teacher check

2 a 16 b 16 c 17 d 18 e 16 f 18

g 20 h 20 i 19

3 a 18 b 18 c 20 d 16 e 20 f 16

g 13 h 19 i 18

BLM 2.4

1 a 4 b 5 c 7 d 9 e 3 f 1

g 8 h 2 i 6

2 a 16 b 14 c 19 d 18 e 13 f 17

g 16 h 17 i 23

3 a 15 b 15 c 12 d 15 e 19 f 18

g 17 h 16 i 17

4 a 6 b 3 c 20 d 12 e 11 f 5

5 a 27 b 26 c 22 d 26 e 23 f

6 Teacher check

BLM 2.5

1 a 18 b 18 c 19 d 14 e 25 f 29

2 a 19 b 19 c 19 d 28 e 28 f 17

3 There are 12 geese in a pond and 7 more fly in.

BLM 2.6

1 19, 29, 5

2 18, 28, 48

3 8, 18, 28, 36

4 17, 27, 47, 71

5 17, 27, 57, 82

6 17, 27, 37, 44

7 a 12, 12, 5 b 19, 13, 6 c 9, 7, 9

d 19, 8, 8, 8 e 20, 6, 14, 14, 14

8 Teacher check

BLM 2.7

1 Teacher check

2 a 13 b 14 c 12 d 15 e 17 f 18

3 a 9 b 15 c 8 d 6 e 13 f 16

4 a 12 b 18 c 16

5 a 13 b 10 c 19 d 17

6 Teacher check

Addition Unit 2

Cecil the tenrec

Math Apps

Mathseeds 1

Mathseeds 2

Mathseeds 1 Toolkit

286286

Split strategy

Lesson 98 • Work sheet 1

Name

Adding

and

subtracting

tens

3 Find the answers.

1 Draw the tens and ones, then count to add.

Tens Ones

35 + 40 =

73 + 20 =

98 – 70 =

27 + 70 =

65 – 40 =

Tens Ones

51 + 20 =

2 Draw the first number, then cross off the tens to subtract.

Tens Ones

89 – 50 =

Tens Ones

64 – 30 =

287

Split strategy Number lines

Lesson 98 • Work sheet 2

Name

287

Adding

and

subtracting

tens

Circle the first number, then jump by tens.

61 + 30 = ______

50 55 60 65 70 75 80 85 90 95 100

93 – 20 = ______

50 55 60 65 70 75 80 85 90 95 100

74 – 40 = ______

30 35 40 45 50 55 60 65 70 75 80

38 + 30 = ______

25 30 35 40 45 50 55 60 65 70 75 80

FREE TRIAL today!

www.mathseeds.com/schools

[email protected]

1 877 661 4898

FREE TRIAL today!

What educators are saying:

It is very interactive and makes learning

fun! I love that I can also search and nd

lessons that cover the skills I am currently

teaching so that I can show my kids on

the Smart Board. My kids also enjoy that

within one lesson there are a variety of

different math skills.

Claire M, Wahl-Coates Elementary, NC

Mathseeds is an incredible program that

not only helps struggling scholars develop

the necessary skills in a fun and engaging

way, but helps to differentiate and

strengthen skills for scholars who have

already mastered taught skills.

Jomayra T, Title I Coordinator, BelovED

Community Charter School, NJ

The team behind Mathseeds has been producing high-

quality math resources for more than 25 years with

a focus on learning outcomes, not just technology.