Sort developments as change or continuity
Grade 7 Social Studies Worksheet - Challenge Me

Circle the best answer.
The Maya counted in twenties and used a sign for zero. What changed and what stayed in their counting, Tala asks?
- Twenties stayed; zero made place value work
- Nothing about counting was new
- They switched to counting in tens
- Zero was the same as one
Inca roads were about 30,000 to 40,000 km long and used without wheeled carts. What does that tell Zee about change and continuity?
Use the picture in question 1.
- Wheels replaced walking
- New roads, but travel on foot carried on
- Roads were short
- The roads changed nothing
Timeline strip "Counting and roads in the Americas" with event cards: before 1500: the Maya count in twenties and use a shell sign for zero; their Long Count calendar needs zero to hold a place; before 1500: the Inca road system grows to about 30,000 to 40,000 km (sources differ), used without wheeled carts; before 1500: Inca relay runners called chasquis carry messages, taking over at stations a few km apart. Timeline strip "Counting and roads in the Americas" with event cards: before 1500: the Maya count in twenties and use a shell sign for zero; their Long Count calendar needs zero to hold a place; before 1500: the Inca road system grows to about 30,000 to 40,000 km (sources differ), used without wheeled carts; before 1500: Inca relay runners called chasquis carry messages, taking over at stations a few km apart. Counting and roads in the Americas before 1500 before 1500 before 1500 the Maya count in twenties and use a shell sign for zero; their Long Count calendar needs zero to hold a place the Inca road system grows to about 30,000 to 40,000 km (sources differ), used without wheeled carts Inca relay runners called chasquis carry messages, taking over at stations a few km apart Why does a calendar count like the Long Count need zero, Bo asks?
- Zero holds an empty place
- Zero means the calendar stops
- Zero is the biggest number
- Zero is not needed in any count
In our own counting, 105 needs a 0 in the middle. Why, Esme asks?
Use the picture in question 3.
- It means 105 is zero
- It shows there are no tens
- It is there for decoration
- It makes the number bigger
The Long Count is described as one of the earliest uses of zero. What should Jun write?
Use the picture in question 3.
- One of the earliest uses of zero
- The first zero anywhere, for certain
- A calendar with no numbers
- The last use of zero
Inca relay runners and Persian relay riders both passed messages along. Is a relay system a change or a continuity in each place, Luz asks?
Use the picture in question 3.
- A continuity: messages stayed slow
- A change that sped up messages
- A change that slowed messages
- Neither: messages were not sent
Why do historians look for both change and continuity in the same time, Milo asks?
Use the picture in question 3.
- History is change and nothing else
- Most times mix new things with old ones
- Nothing changes in history from one age to the next
- Continuity means nothing happened
Noah's note says, "Inca roads replaced walking with wheeled carts." Which fix is right?
Use the picture in question 3.
- Change "roads" to "rivers"
- Change it: travel stayed on foot
- Change "Inca" to "Maya"
- Leave it: roads mean that carts rolled on them
Pia's note says, "The Maya stopped counting in twenties once they used zero." Which fix is right?
Use the picture in question 3.
- Leave it: zero ended the old way
- Change it: they kept counting in twenties
- Change "twenties" to "tens"
- Change "zero" to "nine"
Ren's note says, "Chasquis carried each message the whole way alone." Which fix is right?
Use the picture in question 3.
- Change it: runners passed messages along
- Change "messages" to "coins"
- Change "chasquis" to "carts"
- Leave it: one runner is quicker

