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You may write on the front face of the Demonstration Ruler with a dry-erase
marker. (Do not write on the red band.)
Intervention Strategies
• Linear Measurement: Use number lines to introduce the concept of linear
measurement, rulers, and standard units. Emphasize that measuring with a ruler
is very similar to counting from left to right on a number line.
• Whole Units: Model measurement to the nearest whole unit. Say, “That’s about
3 inches (or cm),” or, “That measures closest to 3 inches (or cm).” Have students
concentrate only on the ruler’s whole-unit markings.
• Half-Units: After students master whole units, introduce half inches by
comparing and measuring objects with similar lengths (within an inch).
Determine which objects are longer using the half-inch markings.
• Vocabulary: Make sure students understand key operational terms such as even
or flush, and left-to-right.
• Measurement Awareness: Expose students to several different types of rulers
of varying sizes, shapes, colors, and materials, including tape measures.
Emphasize that measurement tools may look different but can accomplish the
same standard measurements.
© Learning Resources, Inc., Vernon Hills, IL (U.S.A.)
Learning Resources Ltd., King’s Lynn, Norfolk (U.K.)
Please retain our address for future reference.
Made in China. LRM9301-GUD
Fabriqué en Chine. Informations à conserver.
Made in China. Bitte bewahren Sie unsere
Adresse für spätere
Nachfragen auf.
Hecho en China. Conservar estos datos.
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ATTENTION!
Ce jouet contient des aimants ou des composants magnétiques.
Desaimants collés les uns aux autres ou à un objet métallique à l’intérieur du corps
humain peuvent entraîner des lésions graves ou mortelles. En cas d’ingestion ou
d’inhalation d’aimants, demandez immédiatement une assistance médicale.
WARNUNG!
Dieses Spielzeug enthält Magnete oder magnetische
Bestandteile. Magnete, die im menschlichen Körper einander oder einen
metallischen Gegenstand anziehen, können schwere oder tödliche Verletzungen
verursachen.Ziehen Sie sofort einen Arzt zu Rate, wenn Magnete verschluckt oder
eingeatmet wurden.
ATENCIÓN:
Este juguete contiene imanes o componentes magnéticos.
La unión de los imanes entre sí o a un objeto metálico dentro del cuerpo humano
puede provocar lesiones graves o mortales. Si se han tragado o inhalado los
imanes, busque atención médica inmediata.
RISQUE D’ÉTOUFFEMENT.
Petites pièces.
Interdit aux enfants en dessous de 3 ans.
ERSTICKUNGSGEFAHR.
Kleine Teile.
Nicht geeignet für Kinder unter 3 Jahren.
PELIGRO DE ASFIXIA.
Piezas pequeñas.
No se recomienda para menores de 3 años.