I can determine the mean of a data set, use a target mean to find a missing value, and explain the mean as the fair share and the balance point of the data.Puedo determinar la media de un conjunto de datos, usar una media objetivo para hallar un valor que falta y explicar la media como el reparto justo y el punto de equilibrio de los datos.
MissionMisión · Maker WorkshopTaller de creadores
Build it right.Constrúyelo bien.
The Maker Workshop is buzzing with saws, glue and sanding. Level out the numbers with the mean, and tell the crew how much each job is really worth.
El Taller de Creadores está lleno de sierras, pegamento y lijado. Nivela los números con la media y dile al equipo cuánto vale de verdad cada trabajo.
Word bankBanco de palabras 5 words5 palabrasmean, average, balance point, …media, promedio, punto de equilibrio, …
- meanmedia
- The sum of the values divided by how many values there are.La suma de los valores dividida entre cuántos valores hay.
- averagepromedio
- Another word for the mean: the fair share if the total were split equally.Otra palabra para la media: la parte justa si el total se repartiera en partes iguales.
- balance pointpunto de equilibrio
- The value where the distances of the data above and below it are equal. The mean is the balance point.El valor donde las distancias de los datos por encima y por debajo son iguales. La media es el punto de equilibrio.
- data setconjunto de datos
- The whole collection of values gathered or measured.Toda la colección de valores reunidos o medidos.
- target meanmedia objetivo
- The mean you are trying to reach.La media que intentas alcanzar.
Stage 1 of 5Etapa 1 de 5
Get ReadyPrepárate
Wake up what you know, then explore today's model.
Activa lo que sabes y luego explora el modelo de hoy.
- Add the 8 values in the model to find the total. Predict the mean by sharing the total equally among 8. Then lower the greatest value by 8 and explain what happens to the total and to the mean.
- Four apprentices made 12, 9, 15 and 8 birdhouses. How many birdhouses did they make in all?
- A workshop shares 48 screws equally among 6 boxes. How many screws go in each box?
- 17 meters of ribbon are cut into 4 equal pieces. How long is each piece?
- 1 fresh problem with new numbers each time (interactive only).
Stage 2 of 5Etapa 2 de 5
Try ItInténtalo
Use the hints when you need them. Every wrong answer tells you why.
Usa las pistas cuando las necesites. Cada respuesta incorrecta te dice por qué.
- Find the mean of: 4, 6, 8, 10
- 6
- 7
- 8
- 28
- Miguel earned $60 walking dogs over 4 days. What is his mean daily earning?
- $4
- $15
- $20
- $60
- Find the mean of: 3, 5, 7, 9, 11
- 5
- 7
- 9
- 35
Stage 3 of 5Etapa 3 de 5
On Your OwnPor tu cuenta
Tables, mistakes to find, and problems with a few steps.
Tablas, errores por encontrar y problemas de varios pasos.
- Fill in the table
- Sofia wants to average 15 points per game over 10 games. How many points does she need in all 10 games combined?
- 1.5 points
- 15 points
- 25 points
- 150 points
- Sofia's points in games 1 through 9 were 12, 20, 16, 11, 17, 14, 15, 10, and 18. How many points has she scored so far?
- 15 points
- 123 points
- 133 points
- 150 points
- What is the best next move?
- Put the pages in order and pick the middle one.
- Subtract the least from the greatest.
- Pick the number that appears most often.
- Add all five numbers to get the total.
Stage 4 of 5Etapa 4 de 5 · OptionalOpcional
Practice MorePractica más
Optional extra practice. Press New numbers for another problem on the same skill.
Práctica extra opcional. Toca Números nuevos para otro problema de la misma habilidad.
- 5 fresh problems with new numbers each time (interactive only).
Stage 5 of 5Etapa 5 de 5
Show What You KnowDemuestra lo que sabes
Show what you learned today. Take your time; you can try again.
Muestra lo que aprendiste hoy. Tómate tu tiempo; puedes intentarlo otra vez.
- How many points has Sofia scored in games 1 through 9?
- 15 points
- 133 points
- 135 points
- 150 points
- To finish with a mean of 15 points across 10 games, how many points does Sofia need in all?
- 15 points
- 25 points
- 133 points
- 150 points
- Her nine games total 13 points below the target mean and 11 points above it. What must game 10 be for the data to balance at 15?
- 13 points — 2 below the target mean
- 15 points — exactly the target mean
- 17 points — 2 above the target mean
- 24 points — enough to double the points above