Dreiecksfläche
About points...
We associate a certain number of points with each exercise.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.
That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.
That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.
About difficulty...
We associate a certain difficulty with each exercise.
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.
That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:
Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise
Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise
Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise
Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise
Level 5 -
Level 6 -
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.
That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:
Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise
Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise
Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise
Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise
Level 5 -
Level 6 -
Question
Solution
Short
Video
\(\LaTeX\)
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Exercise:
Die Masszahlen der Seitenlängen eines rechtwinkligen Dreiecks mit dem Umfang formattedfcmspace bilden eine arithmetische Folge. Welchen Inhalt hat die Dreiecksfläche?
Solution:
center tikzpicturescale. draw -- nodebelow b formattedhalff -- nodeabove right c formattedresulta -- nodeleft a ; draw arc start angle angle radius; draw .. node ; tikzpicture center textDaraus ergeben sich die folgen drei Gleichungen: text.Gleichungnotag a + b + c formattedfcmlabelgleichung_A text.Gleichungnotag a^+b^c^labelgleichung_B text.Gleichungnotag b-ac-b b a+c labelgleichung_C textbf. Schritt: Vereinfachung durch Substitution bfraca+c a+fraca+c+cformattedfcm / a+a+c + c formatteddoublefcm a+ cformatteddoublefcm / frac a+cformattedthirdfcmlabelgleichung_D textbf.Schritt: Berechnung von b Da a+cformattedthirdfcm setzen wir das in die Gleichungrefgleichung_C ein: bfraca+bfracformattedthirdfcmformattedhalffcm textbf.Schritt: Berechnung von a Wir setzen bformattedhalffcm in die Pythagoras-Gleichung refgleichung_B ein: a^+formattedhalff^cmc^ a^+formattedsquarfcmc^ Da a+cformattedthirdfcm setzen wir cformattedthirdfcm-a in die Gleichung ein: a^+formattedsquarfcmformattedthirdfcm-a^ a^+formattedsquarfcmformattedsquarthirdfcm-formatteddoublethirdf a+a^ / -a^ formattedsquarfcmformattedsquarthirdfcm-formatteddoublethirdf a/+formatteddoublethirdf a/-formattedsquarfcm formatteddoublethirdf aformattedpreresultacm afracformattedpreresultacmformatteddoublethirdfformattedresultacm textbf.Schritt: Berechnung von c Da aformattedresultacm setzen wir das in a+cformattedthirdfcmrefgleichung_D ein: formattedresultacm+cformattedthirdfcm c formattedresultccm textbf.Schritt: Berechnung der Fläche: Afrac a b fracformattedresultacmformattedhalffcm formattedresultabccm^
Die Masszahlen der Seitenlängen eines rechtwinkligen Dreiecks mit dem Umfang formattedfcmspace bilden eine arithmetische Folge. Welchen Inhalt hat die Dreiecksfläche?
Solution:
center tikzpicturescale. draw -- nodebelow b formattedhalff -- nodeabove right c formattedresulta -- nodeleft a ; draw arc start angle angle radius; draw .. node ; tikzpicture center textDaraus ergeben sich die folgen drei Gleichungen: text.Gleichungnotag a + b + c formattedfcmlabelgleichung_A text.Gleichungnotag a^+b^c^labelgleichung_B text.Gleichungnotag b-ac-b b a+c labelgleichung_C textbf. Schritt: Vereinfachung durch Substitution bfraca+c a+fraca+c+cformattedfcm / a+a+c + c formatteddoublefcm a+ cformatteddoublefcm / frac a+cformattedthirdfcmlabelgleichung_D textbf.Schritt: Berechnung von b Da a+cformattedthirdfcm setzen wir das in die Gleichungrefgleichung_C ein: bfraca+bfracformattedthirdfcmformattedhalffcm textbf.Schritt: Berechnung von a Wir setzen bformattedhalffcm in die Pythagoras-Gleichung refgleichung_B ein: a^+formattedhalff^cmc^ a^+formattedsquarfcmc^ Da a+cformattedthirdfcm setzen wir cformattedthirdfcm-a in die Gleichung ein: a^+formattedsquarfcmformattedthirdfcm-a^ a^+formattedsquarfcmformattedsquarthirdfcm-formatteddoublethirdf a+a^ / -a^ formattedsquarfcmformattedsquarthirdfcm-formatteddoublethirdf a/+formatteddoublethirdf a/-formattedsquarfcm formatteddoublethirdf aformattedpreresultacm afracformattedpreresultacmformatteddoublethirdfformattedresultacm textbf.Schritt: Berechnung von c Da aformattedresultacm setzen wir das in a+cformattedthirdfcmrefgleichung_D ein: formattedresultacm+cformattedthirdfcm c formattedresultccm textbf.Schritt: Berechnung der Fläche: Afrac a b fracformattedresultacmformattedhalffcm formattedresultabccm^
Meta Information
Exercise:
Die Masszahlen der Seitenlängen eines rechtwinkligen Dreiecks mit dem Umfang formattedfcmspace bilden eine arithmetische Folge. Welchen Inhalt hat die Dreiecksfläche?
Solution:
center tikzpicturescale. draw -- nodebelow b formattedhalff -- nodeabove right c formattedresulta -- nodeleft a ; draw arc start angle angle radius; draw .. node ; tikzpicture center textDaraus ergeben sich die folgen drei Gleichungen: text.Gleichungnotag a + b + c formattedfcmlabelgleichung_A text.Gleichungnotag a^+b^c^labelgleichung_B text.Gleichungnotag b-ac-b b a+c labelgleichung_C textbf. Schritt: Vereinfachung durch Substitution bfraca+c a+fraca+c+cformattedfcm / a+a+c + c formatteddoublefcm a+ cformatteddoublefcm / frac a+cformattedthirdfcmlabelgleichung_D textbf.Schritt: Berechnung von b Da a+cformattedthirdfcm setzen wir das in die Gleichungrefgleichung_C ein: bfraca+bfracformattedthirdfcmformattedhalffcm textbf.Schritt: Berechnung von a Wir setzen bformattedhalffcm in die Pythagoras-Gleichung refgleichung_B ein: a^+formattedhalff^cmc^ a^+formattedsquarfcmc^ Da a+cformattedthirdfcm setzen wir cformattedthirdfcm-a in die Gleichung ein: a^+formattedsquarfcmformattedthirdfcm-a^ a^+formattedsquarfcmformattedsquarthirdfcm-formatteddoublethirdf a+a^ / -a^ formattedsquarfcmformattedsquarthirdfcm-formatteddoublethirdf a/+formatteddoublethirdf a/-formattedsquarfcm formatteddoublethirdf aformattedpreresultacm afracformattedpreresultacmformatteddoublethirdfformattedresultacm textbf.Schritt: Berechnung von c Da aformattedresultacm setzen wir das in a+cformattedthirdfcmrefgleichung_D ein: formattedresultacm+cformattedthirdfcm c formattedresultccm textbf.Schritt: Berechnung der Fläche: Afrac a b fracformattedresultacmformattedhalffcm formattedresultabccm^
Die Masszahlen der Seitenlängen eines rechtwinkligen Dreiecks mit dem Umfang formattedfcmspace bilden eine arithmetische Folge. Welchen Inhalt hat die Dreiecksfläche?
Solution:
center tikzpicturescale. draw -- nodebelow b formattedhalff -- nodeabove right c formattedresulta -- nodeleft a ; draw arc start angle angle radius; draw .. node ; tikzpicture center textDaraus ergeben sich die folgen drei Gleichungen: text.Gleichungnotag a + b + c formattedfcmlabelgleichung_A text.Gleichungnotag a^+b^c^labelgleichung_B text.Gleichungnotag b-ac-b b a+c labelgleichung_C textbf. Schritt: Vereinfachung durch Substitution bfraca+c a+fraca+c+cformattedfcm / a+a+c + c formatteddoublefcm a+ cformatteddoublefcm / frac a+cformattedthirdfcmlabelgleichung_D textbf.Schritt: Berechnung von b Da a+cformattedthirdfcm setzen wir das in die Gleichungrefgleichung_C ein: bfraca+bfracformattedthirdfcmformattedhalffcm textbf.Schritt: Berechnung von a Wir setzen bformattedhalffcm in die Pythagoras-Gleichung refgleichung_B ein: a^+formattedhalff^cmc^ a^+formattedsquarfcmc^ Da a+cformattedthirdfcm setzen wir cformattedthirdfcm-a in die Gleichung ein: a^+formattedsquarfcmformattedthirdfcm-a^ a^+formattedsquarfcmformattedsquarthirdfcm-formatteddoublethirdf a+a^ / -a^ formattedsquarfcmformattedsquarthirdfcm-formatteddoublethirdf a/+formatteddoublethirdf a/-formattedsquarfcm formatteddoublethirdf aformattedpreresultacm afracformattedpreresultacmformatteddoublethirdfformattedresultacm textbf.Schritt: Berechnung von c Da aformattedresultacm setzen wir das in a+cformattedthirdfcmrefgleichung_D ein: formattedresultacm+cformattedthirdfcm c formattedresultccm textbf.Schritt: Berechnung der Fläche: Afrac a b fracformattedresultacmformattedhalffcm formattedresultabccm^
Contained in these collections
| Title | Creator | Matched on |
|---|---|---|
| Quadrat und Kreis | uz | tags |
| Länge von Zickzack-Bewegung | uz | tags |
| Länge einer eckigen Spirale | uz | tags |
| Unendlicher Streckenzug | uz | tags |
| Winkel des Parallelogramms | uz | tags |
Similar exercises (12)
| Title | Creator | Matched on |
|---|---|---|
| Quadrat und Kreis | uz | tags |
| Länge von Zickzack-Bewegung | uz | tags |
| Länge einer eckigen Spirale | uz | tags |
| Unendlicher Streckenzug | uz | tags |
| Winkel des Parallelogramms | uz | tags |
| Länge von eckiger Spirale | uz | tags |
| Länge von Streckenzug | uz | tags |
| Blatt zerschneiden und stapeln | uz | tags |
| Fläche von spiralförmiger Figur | uz | tags |
| Streckenlänge | uz | tags |
| Grenzwert von Folge | uz | tags |
| Zickzackweg | uz | tags |

