Mathematics
Grade / Unit / Title and Unit Overview / Time Frame: / TAKS and TEKS / Enduring Understandings / Essential Questions2 / 1 / Number Operations
1+8=9 and 9-1=8 By looking at these number sentences we can see that addition and subtraction relate. Adding can help us to easily solve a subtraction problem that can be involved. / 12 days--
3 Weeks / TAKS:
1, 2
TEKS:
2.3A, 2.5C /
- Addition and subtraction are related.
- There is more than one way to solve a problem.
- How are addition and subtraction related?
- What strategy can be used to determine if addition or subtraction is needed?
3 / 1 / Mathematical Thinking & Number Concepts
Explore place value to read, write, and describe the value of whole numbers through 999,999, understand the value of money, and use place value to understand the problem solving process. / 26 Days--
6 Weeks / TAKS:1
TEKS:
3.1A, 3.1B, 3.1C
3.15A, 3.15B, 3.15D /
- All numbers part or whole have value.
- Within a number, every digit has its own value.
- Place Value is used to describe the value of whole numbers.
- Place value is used to translate numbers into words.
- How do mathematicians determine the value of each digit within a number?
- What are some ways that place value can be used daily?
- How is place value utilized during basic computations?
- Is there a time that place value will not be utilized?
- How is place value used when counting money?
Facts / Relationships and/or Connections that should emerge / Vocabulary / Text Resources
- Patterns can be used to develop strategies for remembering basic subtraction and addition facts.
- Solve problems using basic addition and or subtraction facts.
- Discover and understand that addition and subtraction are related
- Knowing addition facts will help solve subtraction problems.
- Discover and understand that addition and subtraction are related.
- Addition and subtraction is a part of daily life.
addend / sumandos
basic facts / sumas basicas
difference / diferencia
equal / igual
fact family / familia de operaciones
minus / menos
number line / recta numerica
number sentence / oracion numerica
numeral / numerico
part / parte
plus / mas
related / relacionado
solution sentence / solucion
solve / resolver
strategies / estrategias
subtract / substraccion, restar
sum / la suma
together / juntos, unir
total / total
turn around fact / invertidos
whole / entero
/ Investigations:
Mathematical Thinking at Grade 2
- Investigations 2 (all sessions) and 4 (sessions 1, 3, 4, 5)
MathLearningCenter
- Work Place 4A - 4F
Volume 1:Unit 3
- Session 1, 2, 7
- Ch. 1, Lessons 4 – 12, p. 7-24
Two of Everything
by Lily Toy Hong
- All numbers have value.
- Using what is known about place value can help compare two numbers.
- Place value tells how much each digit stands for.
- Words can be used instead of digits to write any number.
- A place value model can be used to understand greater numbers.
- Knowing how to compare numbers can be useful for putting a group of numbers in order.
- A decimal point is used to separate the dollars from the cents.
- There are several problem solving plans which can be used such as:
- Draw a picture
- Guess and check
- Look for a pattern
- Act it out
- Make a table or chart
- Work backward
- Write a number sentence
- Numbers are all around us.
- Examples (on clocks, calendars, school buses, numbers of students in the class, ages of students, and student cafeteria numbers)
- Students will recognize numbers on a cash register, or miles traveled on a vacation.
- Students will compare the price of video games.
bill / billete
comma / coma
decimal / decimal
difference / diferencia
facts / datos
half-dollar / medio dolar
numbers / numeros
one hundred thousand / cien mil
/
Investigations:
Mathematical Thinking at Grade 3- Landmarks in the Hundreds
- Combining and Comparing
MathLearningCenter
MLC Volume 1
TEXTEAMS Math Activities:
Place Value Unit 1
Page 2