I can tell the difference between a statistical question and a non-statistical question.Puedo distinguir entre una pregunta estadística y una pregunta no estadística.
MissionMisión · Reef RescueRescate del arrecife
Protect the coral, one calculation at a time.Protege el coral, un cálculo a la vez.
Reef Rescue needs a data detective! Before the dive team splashes in, you decide which questions real reef data can answer and which ones have just one fixed answer.
¡Rescate del Arrecife necesita un detective de datos! Antes de que el equipo de buceo se lance al agua, tú decides qué preguntas pueden responder los datos reales del arrecife y cuáles tienen una sola respuesta fija.
Word bankBanco de palabras 5 words5 palabrasstatistical question, non-statistical question, data, …pregunta estadística, pregunta no estadística, datos, …
- statistical questionpregunta estadística
- A question that expects different answers, so you collect data to answer it.Una pregunta que espera respuestas diferentes, por lo que se reúnen datos para responderla.
- non-statistical questionpregunta no estadística
- A question with one fixed answer. Nothing varies, so there is nothing to collect.Una pregunta con una sola respuesta fija. Nada varía, así que no hay nada que reunir.
- datadatos
- Facts or numbers you collect, such as the answers to a survey.Hechos o números que reúnes, como las respuestas de una encuesta.
- variabilityvariabilidad
- How much the values in a set of data differ from one another.Cuánto difieren entre sí los valores de un conjunto de datos.
- surveyencuesta
- A way to collect data by asking people the same question.Una manera de reunir datos preguntándoles a las personas la misma pregunta.
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.
- Write a statistical question your class could ask about travel time to school. Predict whether the answers will vary. Then change one answer in the model and describe what happens to the gap between the greatest and least answers.
- The dot plot shows how many sea stars were found in each of 10 tide pools. How many tide pools had exactly 5 sea stars?
- 5
- 2
- 3
- 10
- The table shows how many eggs the team found in each pelican nest it checked. How many nests did the team check?
- Each dot is one volunteer at a beach clean-up. What is the greatest number of minutes any volunteer worked?
- 8
- 30
- 50
- 45
- 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.
- Which of the following is a statistical question?
- How many points did each player score this season?
- How many points are scored for a free throw?
- What sport does this team play?
- How many halves are in a soccer game?
- Which question is NOT a statistical question?
- How many home runs did each player hit this year?
- How many miles does each runner train per week?
- How many innings are in a baseball game?
- How tall is each player on the basketball team?
- Why is 'How many hours of sleep did each student get last night?' a statistical question?
- Because different students got different amounts of sleep
- Because it asks about sleep
- Because hours are numbers
- Because it asks every student the same question
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.
- A coach asks: "How many hours does each athlete on the track team sleep the night before a meet?" Why is this a statistical question?
- Because it is about sports
- Because it has a numerical answer
- Because the answers will vary from athlete to athlete
- Because the whole track team is asked
- Match each question with what makes it statistical or not.
- Spot the Common Mistake
- What is the best next move?
- Ask whether different students could give different answers.
- Check whether the answer will be a number.
- Look for the one answer that everyone will agree on.
- Ask one student and let that answer stand for the whole class.
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.
- 3 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.
- Which question is statistical?
- 'How many goals has the team scored total?'
- Both are statistical
- 'How many goals did each player score this season?'
- Neither is statistical
- Why is the team total NOT a statistical question?
- Because the total is a very large number
- Because it is about soccer
- Because goals are counted, not measured
- Because it has exactly one answer, with no variability
- Why is “How many hours does each sixth grader practice an instrument in one week?” a statistical question?
- The answer is measured in hours.
- Answers vary by student.
- The question is about music.
- Only one student is asked.