Solutions to Smart Squares:
In this video, Christian Spannagel shows how to find patterns and structures with squares.
spektrum.de/video/christian-spannagel-loesungsansaetze-zu-smarten-quadraten/2292979
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using generic or ad hoc methods in an orderly manner to find solutions to problems
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Bowling sequence: This video by »Christian Spannagel« is about number sequences.
spektrum.de/video/christian-spannagel-bowlingfolge/2322247
Learn to define: square: In this video by Christian Spannagel, you'll learn how to define the term "square."
spektrum.de/video/christian-spannagel-definieren-lernen-quadrat/2321188
9 times true or false: From prime numbers to square numbers to equilateral triangles: In this video, Christian Spannagel presents a typical exam question.
spektrum.de/video/christian-spannagel-9-mal-wahr-oder-falsch/2315117
The number sequence 5, -15, 45, -135, 405: How do you express a number sequence in recursive or closed form?
spektrum.de/video/christian-spannagel-die-zahlenfolge-5-15-45-135-405/2314130
The Euler line in GeoGebra: Today's topic in the »Christian Spannagel« video: We construct the Euler line in GeoGebra.
spektrum.de/video/christian-spannagel-die-euler-gerade-in-geogebra/2308322
Function graphs in GeoGebra: Today's topic: We'll analyze quadratic functions in GeoGebra and examine different forms of representation.
spektrum.de/video/christian-spannagel-funkionsgraphen-in-geogebra/2308127
Higher eyes count: Today's topic: Chance and probabilities
spektrum.de/video/christian-spannagel-die-hoeheren-augen-zaehlen/2306564
Mulled wine functions: Today's topic: Functional relationships
spektrum.de/video/christian-spannagel-gluehwein-funktionen/2301892
The complementary set: Christian Spannagel explains the complementary set.
spektrum.de/video/christian-spannagel-die-komplementaermenge/2298145
Conversion between place value systems: How do you convert numbers between different place value systems?
spektrum.de/video/christian-spannagel-umrechnung-zwischen-stellenwertsystemen/2297289
Division in the 6-base system: 22304/5: How does division in the 6-base system work? Christian Spannagel explains it using example 22304/5.
spektrum.de/video/christian-spannagel-division-im-6er-system-22304-5/2296970
Just a little bit: How are decimal numbers converted to binary?
spektrum.de/video/christian-spannagel-just-a-little-bit/2297020
We define the term rhombus: In this video, Christian Spannagel examines what constitutes a rhombus from a mathematical perspective.
spektrum.de/video/christian-spannagel-wir-definieren-den-begriff-raute/2294252
Explaining patterns with formulas and images: Today's topic: Explaining patterns with formulas and images
spektrum.de/video/christian-spannagel-muster-begruenden-mit-formeln-und-bildern/2293917
The House of Quadrilaterals: In this video, Christian Spannagel uses the House of Quadrilaterals to derive a system of concepts.
spektrum.de/video/christian-spannagel-das-haus-der-vierecke/2293255
Smart Squares task: 🧑🏫Today's topic: Smart Squares
spektrum.de/video/christian-spannagel-aufgabe-zu-smarten-quadraten/2291514
Isomorphism and group properties: Do group properties transfer to isomorphic structures? Yes - | and Christian Spannagel proves it in this video.
spektrum.de/video/christian-spannagel-isomorphie-und-gruppeneigenschaften/2279701
The intersection point of the side bisectors in a triangle: Do all the side bisectors of a triangle intersect? Yes - | and at one point! Christian Spannagel ...
spektrum.de/video/christian-spannagel-schnittpunkt-der-seitenhalbierenden-im-dreieck/2279497
Analysis of a connection table: Use a connection table to check which group a structure belongs to? Christian Spannagel does that in this video.
spektrum.de/video/christian-spannagel-analyse-einer-verknuepfungstafel/2268608
Patterns and structures: square numbers: Why is the sum of the first n odd natural numbers a square number? Christian Spannagel explains this in this video.
spektrum.de/video/muster-und-strukturen-quadratzahlen/2264857
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