Some scientists study whales. Different kinds of whales swim along the west coast of the United States of America.A scientist sees 8 blue whales. Blue whales are the largest animals on Earth.
Where is the United States of America on the map?
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Map Legend
Mexico
United States of America
Canada
Alaska
Pacific Ocean
Atlantic Ocean
Border
North America
North AmericaSCA07ASE2X_U2_120MHarcourt/Grade 2 California51421 2C-2.7final proof 11/16/04
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Vocabulary Reader
1–4 Chapters 1–2
WhalesObjective Use literature to reinforce place-value concepts.
Genre Nonfiction
Domains: Operations and Algebraic Thinking Number and Operations in Base Ten
Preparing to Read Refer children to the story cover and read the title. Explain that together they will read a story about whales and solve some math problems. Then they will read the story again and learn some geography facts to answer social studies questions about the story.
Story Vocabulary scientist, coast, blue whales, humpback whales, pilot whales, fin whales, throat grooves
Reading the Math Story Pages 1–4
The story tells the kinds and numbers of whales that a scientist sees.• How many blue whales did the scientist
see? How many humpback whales? 8 blue whales; 13 humpback whales
• Did the scientist see more blue whales or humpback whales? How do you know? The scientist saw more humpback whales because 13 is greater than 8.
• How many pilot whales did the scientist see? How many tens and ones is that? 29 pilot whales; Possible answers: 2 tens 9 ones, 1 ten 19 ones, or 0 tens 29 ones
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Critical Area Pacing ChartIntroductionVocabulary
Reader
Chapters AssessmentPerformance Assessment
Total
1 day 34 days 1 day 36 days
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2 RESPOND
Map Legend
Mexico
United States of America
Canada
Alaska
Pacific Ocean
Atlantic Ocean
Border
North America
North AmericaSCA07ASE2X_U2_120MHarcourt/Grade 2 California51421 2C-2.7final proof 11/16/04
0 500 1,000 Miles500 1,000 Kilometers0
N
S
EW
Map Legend
Mexico
United States United States United States United States United States of Americaof Americaof Americaof Americaof Americaof Americaof Americaof Americaof America
Canada
Alaska
Pacific Ocean
Atlantic Ocean
Border
NoNoNoNorth Americarth Americarth Americarth Americarth Americarth Americarth Americarth Americarth America
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Map Legend Border
0 500 1,000 Miles 500 1,000 Kilometers 0
N
S
E W
Alaska
Canada
United States of America
Mexico
Atlantic Ocean
Pacific Ocean
Map Legend Border
0 500 1,0001,000 Miles 500 1,000 Kilometers 0
N
S
E W
Alaska
Canada
United States United States United States United States United States United States United States United States United States United States United States United States United States United States United States United States United States United States of Americaof Americaof Americaof Americaof America
United States United States United States United States United States United States United States United States United States United States United States United States United States United States United States United States United States United States of Americaof Americaof Americaof Americaof America
Mexico
Atlantic OceanOcean
Pacific OceanOcean
North America
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Number Sense and Place Value 5–8
Write About the StoryPage 7
Math Have children identify the humpback whale and the
pilot whales in the pictures. Encourage children to use 2-digit numbers and the review vocabulary in their stories. Ask volunteers to share their stories with the class.
Math Vocabulary more, tens, ones, fewer, greater than, less than
Do the Math • The Size of NumbersPage 8In this activity, children identify the number of tens and ones in 2-digit numbers and compare numbers. Then they write a story using their own 2-digit numbers.
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Pages 5 and 6
Children should understand the story progression.• How many fin whales did the scientist see?
How many tens and ones is that? 27 fin whales; Possible answers: 2 tens 7 ones, 1 ten 17 ones, or 0 tens 27 ones
• How many throat grooves might a humpback whale have? How many tens and ones is that? 35 throat grooves; Possible answers: 3 tens 5 ones, 2 tens 15 ones, 1 ten 25 ones, or 0 tens 35 ones
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Map Legend
Mexico
United States of America
Canada
Alaska
Pacific Ocean
Atlantic Ocean
Border
North AmericaSCA07ASE2X_U2_120MHarcourt/Grade 2 California51421 2C-2.7final proof 11/16/04
0 500 1,000 Miles500 1,000 Kilometers0
N
S
EW
North America
Connections to Social Studies
Critical Area
8A Chapters 1–2
Pacific Ocean Facts:• The Pacific Ocean is the oldest of
all oceans.
• It is the largest ocean.
• It stretches from the Arctic Circle to Antarctic regions.
Atlantic Ocean Facts:• The Atlantic Ocean is the second
largest ocean on Earth.
• It lies between the Americas and Europe and Africa.
• Greenland is the Atlantic Ocean’s largest island.
Mexico Facts:• Mexico’s western coast borders
the Pacific Ocean.
• Mexico’s marine life includes dolphins, sea lions, and elephant seals.
• During wintertime, gray whales travel from the Bering Sea to Mexico’s Baja Peninsula.
Pilot Whales Facts:• Pilot whales are social animals.
• They swim in groups of 20–100.
• Pilot whales can be short-finned or long-finned.
• Short-finned whales live in warmer waters.
• Long-finned whales live in colder waters.
United States Facts:• The United States lies between two oceans.
• It is bordered by the Pacific Ocean on the west and the Atlantic Ocean on the east.
• The United States also borders two other countries: Canada on the north and Mexico on the south.
Read the story again as children follow along. Then read aloud the fun facts about geography and whales listed below. Have children look at the story pictures and discuss the Social Studies question on each page.
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