Supply teacher deck · Geography · Year 8

Planning a Route with Digital Maps

Slide 1 of 7
03:00

Slide 1 of 7 · Settling starter · Geography · Year 8

3 minutes

Planning a route with digital maps: 3 routes, 1 that really works

You have a worksheet and a stimulus sheet called Aberllyn: the trip, the map, the route planner. Year 8 are visiting Castell Aberllyn. A map app has offered 3 walking routes from the station. Today you check the app against the map and against search results, pick the route that works for this group, and write a route card an adult could follow.

While the register is called: write your name, class and date on your worksheet, then read section 1, The trip brief, on the stimulus sheet. Underline the 3 things the group needs.

Starter question: What time does the group leave the station, and what time must it be at the castle gate?

DCF: Producing → Sourcing, searching and planning digital content No computers needed · Aberllyn is an invented town

Slide 2 of 7 · Today’s brief and key words · Geography · Year 8

2 minutes

Your brief: read the map, time the routes, check the sources, choose

The app does not know who is in your group, what time you need to arrive, or that one of the bridges might be shut. You will read grid references from the map, work out how long each route takes this group, decide which search result to trust about the footbridge, choose a route with evidence, and write a route card.

Four-figure grid reference

Easting first (the number along the bottom), then northing (the number up the side), for the bottom-left corner of the square. Along the corridor, then up the stairs.

Group time

The app times are for 1 adult at 5 km/h. This group walks at 3 km/h, so multiply the distance in km by 20 to get the minutes.

Trustworthy source

Judge a search result by who wrote it, when it was updated and how exact it is. An old post can be honest and still wrong today.

DCF: Producing → Sourcing, searching and planning digital content The app is a starting point, not the answer

Slide 3 of 7 · Step 1: read the map · Geography · Year 8

7 minutes

Step 1: grid references, direction and straight-line distance

Use the map on the stimulus sheet. Each square is 1 km across. The first row is done on the board: copy it, then fill in the other 6, and give 1 reason from the map why all 3 routes are longer than the straight line.

Question Answer
Four-figure grid reference of the station 2060 (easting 20, northing 60, bottom-left corner of the square)
Step 1 on your worksheet · 7 minutes Easting first, then northing · use the scale bar for distance

Slide 4 of 7 · Step 2: compare the three routes · Geography · Year 8

11 minutes

Step 2: fill the route table, group time = distance × 20

Use section 3 of the stimulus sheet, what the app says. Row A is on the board: copy it, then do B and C. Then answer: why are the labels “fastest” and “shortest” not enough to choose a route for this group?

Route Distance (km) App time (min) Group time (min) Step-free? Toilets on the way? Any other problem?
A 2.1 25 2.1 × 20 = 42 Yes No Busy main road; pavement only 1 m wide on Pont Fawr, too narrow for a wheelchair with people passing
Step 2 on your worksheet · 11 minutes Show the multiplication, so your time can be checked

Slide 5 of 7 · Steps 3, 4 and 5: check, choose, write the route card · Geography · Year 8

20 minutes

Step 3, Step 4 & Step 5: check before you trust, choose and time your route, write the route card

Step 3 (6 min): read the 5 search results about Pont Droed footbridge. Which do you trust most, and why (who, when, how exact)? Which would you not trust? Will the bridge be open on Thursday 19 March? Plan 2 more searches with the exact words you would type. Step 4 (7 min): choose a route, rule out the other 2 with evidence, and fill in the timed plan from 09:50. Step 5 (7 min): write the route card, each line with a compass direction, a landmark and a grid reference.

Stage Minutes Clock time at the end
Leave the station · 09:50

Route card, line 1 (given): Leave the station (2060) and head east along Stryd y Farchnad.

Steps 3, 4 and 5 on your worksheet · 20 minutes Remember the 5-minute toilet stop · be at the gate by 10:50

Slide 6 of 7 · Self and partner check · Geography · Year 8

4 minutes

Swap with your partner and check against the success criteria

Tick each success criterion your partner’s work meets. Then correct 1 thing: a grid reference with the numbers the wrong way round, a group time without the multiplication, or a route card line missing its direction, landmark or grid reference.

  • I can give a four-figure grid reference with the easting first, and use the scale to estimate a distance.
  • I can turn a distance into a walking time for a group and work out an arrival time.
  • I can judge which online source to trust by who wrote it, when it was updated and how exact it is.
  • I planned searches to check facts the map app could not tell me, and wrote down the exact words I would use.
  • I chose a route that meets every need in the brief and used evidence to rule out the other 2.
4 minutes · partner check Finished early? The train home leaves at 13:30: when must the group leave the castle?

Slide 7 of 7 · Plenary review · Geography · Year 8

3 minutes

Round the room, then quick-check answers before handing in

Everyone names 1 thing the app did not know about this group, nobody repeats one. Then check these answers.

Question Correct answer
Which route should the group take, and why? Route C. Step-free, open, off the main road, toilets at the visitor centre. B is closed and has 24 steps; A has a 1 m pavement and no toilets.
What time does the group reach the castle gate, and how many minutes to spare? 10:47, 3 minutes to spare. 30 + 5 + 22 = 57 minutes from 09:50.
Which search result did you trust most about Pont Droed? The council closures page: the council owns the bridge, updated 2 March, exact dates 2 to 27 March.
Check your name and class are on your worksheet Worksheets in · stimulus sheets stay with the pair