Arithmetic with a mirror © Siemens Stiftung 2015 CC BY-SA 4.0 international

Arithmetic with a mirror

Interactive

Interactive arithmetic exercise:
Five coins are arranged on a table. How must the pocket mirror be placed to double the number of coins? (And four other exercises.)

English, German
Interactive (1.8 MByte)
2021-06-25
Three possible positions for the pocket mirror are given in each case. Click the button with a check mark to show the correct mirror position. At the same time, a photo showing the correct answer is displayed.
There are no other media directly related to this file.
Assignment; Worksheet (interactive)
Mathematics
Grade 1 to 4
Elementary school
Axial symmetry; Basic arithmetic operation; Geometric figure; Geometry; Optics
Siemens Stiftung Media Portal
MediaHouse GmbH
© Siemens Stiftung 2015
Stay up-to-date!

About four times a year, we inform you about new media on this portal as well as current studies and events related to OER and STEM.

Media Portal newsletter – register now

About four times a year, we inform you about new media on this portal as well as current studies and events related to OER and STEM.

*Required fields


Language

Liebe Nutzerin, lieber Nutzer,
El Portal de Medios – das spanische Medienportal – ist umgezogen und heißt nun CREA.
Auf CREA finden Sie weiterhin hochwertige Medien für den MINT-Unterricht und vieles mehr.

Dear User,
El Portal de Medios - the Spanish Media Portal - has moved and is now called CREA.
On CREA, you will continue to find high-quality media for STEM education and much more.

Estimado usuario, estimada usuaria,
El Portal de Medios – en español – ha sido trasladado y ahora se llama CREA.
En CREA seguirá encontrando medios de alta calidad para la enseñanza de STEM, y mucho más.

Zu CREA wechseln / Switch to CREA / Cambiar a CREA
CREA - El Portal de Medios para la Enseñanza STEM

Hierbleiben / Stay here / Quédate aquí:
Fenster schließen / Close window / Cerrar ventana