Tallinje: Heltal

Tallinje: Heltal Skærmbillede  Download  Gem
  • Tallinie
  • Heltal
  • Absolut værdi

Indhold

  • Tallinie
  • Heltal
  • Absolut værdi

Beskrivelse

Hvad har højde, kontosaldo og temperatur til fælles? De kan alle være repræsenteret på en tallinje. Sammenlign heltal på en tallinje og i en ulighed. Oplev betydningen af ​​absolut værdi.

Læringsmål

  • Brug positive og negative tal til at præsentere mængder i flere kontekster.
  • Forklar betydningen af ​​positive værdier, negative værdier og nul i flere kontekster.
  • Beskriv placeringen af ​​et punkt på en tallinje i forhold til dets modsatte.
  • Beskriv placeringen af ​​et punkt på en tallinje i forhold til dets modsatte
  • Definer den absolutte værdi af et tal som dets afstand fra nul.
  • Fortolk uligheder som udsagn om den relative placering af to heltal på en tallinje.

Standardjustering

Fælles indhold - matematik

6.NS.C.5
Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.
6.NS.C.6a
Recognize opposite signs of numbers as indicating locations on opposite sides of 0 on the number line; recognize that the opposite of the opposite of a number is the number itself, e.g., -(-3) = 3, and that 0 is its own opposite.
6.NS.C.6c
Find and position integers and other rational numbers on a horizontal or vertical number line diagram; find and position pairs of integers and other rational numbers on a coordinate plane.
6.NS.C.7
Understand ordering and absolute value of rational numbers.
6.NS.C.7a
Interpret statements of inequality as statements about the relative position of two numbers on a number line diagram. For example, interpret -3 > -7 as a statement that -3 is located to the right of -7 on a number line oriented from left to right.
6.NS.C.7b
Write, interpret, and explain statements of order for rational numbers in real-world contexts. For example, write -3 oC > -7 oC to express the fact that -3 oC is warmer than -7 oC.
6.NS.C.7c
Understand the absolute value of a rational number as its distance from 0 on the number line; interpret absolute value as magnitude for a positive or negative quantity in a real-world situation. For example, for an account balance of -30 dollars, write |-30| = 30 to describe the size of the debt in dollars.
6.NS.C.7d
Distinguish comparisons of absolute value from statements about order. For example, recognize that an account balance less than -30 dollars represents a debt greater than 30 dollars.
7.NS.A.1a
Describe situations in which opposite quantities combine to make 0. For example, a hydrogen atom has 0 charge because its two constituents are oppositely charged.
7.NS.A.1b
Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world contexts.
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Lærertips

Download lærertips PDF Oversigt over SIM-kontroller, modelforenklinger og indsigt i studerendes tænkemåder ( PDF ).

Aktiviteter indsendt af lærere

SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) Dette bidrag er designet af PhET. Diana López Mellemskole
Highschool
Anden Kemi
Matematik
Fysik
Biologi
PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) Dette bidrag er designet af PhET. Diana López Mellemskole
K-5
Demo
Guidet
Diskuter
Laboratorie
Lektie
Kemi
Fysik
Astronomi
Matematik

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