Harbor Number 30 Tracing for a Confident Three-Tens Milestone

Full original number 30 worksheet with THIRTY, numeral guides and shaded 30 strip cell

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PublishedNovember 13, 2026

Age Group5-8

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Skills PracticedNumeral formation, number-word reading, place value and sequence

Use InSmall-group or family harbor lesson

Sheet 30 is shown from top border to the teacher-signature line.

The entire Letter page pairs THIRTY and 30 with guided writing and an ordered strip from 21 to 30.

Three model boats arrive at a pretend harbor, with ten paper passengers on each. The dock count needs to report people, so Cleo sets out thirty tickets and marks a zero by the space for passengers traveling separately. Number 30 Tracing gives the count a written record. The large 30 sits beside THIRTY, and four dotted rows invite a short writing turn. Near the bottom, a shaded cell connects 30 to the numbers on either side of it. The page keeps the harbor count in view when the objects are put away.

30Grouped in tens

0Loose ones

What does the 30 label count?

In 30, the 3 reports three full tens and the 0 means zero remaining ones. Ask how the count differs from the number of boats. Position 30 is the last cell of its printed strip. An extra passenger is modeled with a loose 31 card to the right.

Ask for two harbor reports. The groups contain 30, and the loose count is 0. Once the totals are combined, look at 30 and say which position records the 3 full groups.

Try hearing about the 0 loose units first. Keep the tens on the left of 30. The order of the harbor reports can change without moving either digit.

Let one group count ten per boat, then give a reporter the job of collecting the subtotal from each boat and labeling the complete harbor tally.

At the harbor station, ask for the difference between 30 and 30. A learner can show the 0 extra units with counters. For a zero, point to the empty space while reading 30.

Let a speaker read the finished harbor sign while a partner traces 30. Swap jobs and ask What happens to 30 when one ticket leaves a full group and is set aside, but still belongs to the harbor tally? Listen for an explanation of the 30 count before commenting on the written result.

Read the large 30 before using a pencil

Set the harbor sign by the large 30. Point between its smaller digits and the big outlines. Say thirty while moving a finger from the first numeral to the last.

See which digit of 30 the child notices first. If attention goes straight to the 0, try a bookmark at the left of 30. Let a partner explain the harbor amount before taking a pencil turn.

Large outline of the two digits in 30 at the top left — Inspect the large shape of 30 before moving to a smaller copy.The original outline lets the writer compare the height of both digits in 30.

Number 30 Tracing with a clear hand movement

For 30, shape both curves of 3 before drawing a separate oval 0. Rehearse that transition on a scrap, then choose from five 30 models on a dotted line. Rest the spare hand on the page during the lift between 3 and 0.

Pick one feature to watch in the 30 attempt. Compare the digit heights, or see where the strokes of 30 meet the lower guide. If one 30 turn needs work, practise it at a larger size before shrinking it.

Four lines of 30 allow several short visits. Save the lower 30 rows for the next harbor session instead of making the first try last through all twenty models.

Adjust the next attempt at 30

30 response	Prompt	Check Thirty
Only the 0 extra units get counted.	Put the 30 portion beside them.	Read the whole label 30 from the joint display.
The two 30 digits crowd or touch.	Compare the gap in the large 30.	Follow one 30 pair and lift between shapes.
The reader skips part of THIRTY.	Point through THIRTY at speech pace.	Match THIRTY with its separate numeral.
The 30 box is guessed from shading.	Name an adjacent printed value.	Find 30 again with the color covered.

Check the harbor count before correcting the pencil. If the child says 30 correctly, ask which shape needs a slower try.

Trade a ticket without adding a traveler

Slide one ticket out of the harbor's last packet and place it on the dock. All thirty passengers still have tickets. The display now shows two full tens and ten loose tickets, so the child can rebuild the third complete group before writing 30. On a second round take one ticket away entirely, then show the change to 29. Explain why these two moves produce different results. Save the strip for last and ask the learner where 30 sits on it. A separate 31 card shows how to continue after the printed row ends.

Locate 30 on the 21–30 strip

Count 10 places from the left to find 30. Check by reading up from 21. A learner can use 21 as the first spoken value instead of restarting at one.

Point to 29 on the left of 30. The row ends at 30. Write 31 on another card and set it beyond the printed edge. Match one step from 30 with an addition or removal in the harbor count. When the harbor arrangement changes but the count stays 30, leave the pointer in place.

Hide the shaded 30. Ask the reader to name an uncovered neighbor and predict the hidden numeral. Check it against 30, then let the learner choose a nearby box for a partner to guess.

Sequence 21–30 with 30 highlighted in cell 10 — Check the label for the harbor count in the shaded box marked 30.The 30 cell lies 9 moves from 21 and 0 moves from 30.

Let THIRTY do a reading job

Say thirty while a learner tracks the capitals. On a second reading, listen to the THIR at the start and the TY ending of THIRTY. Use the big THIRTY reference to check a faint letter in its dotted row.

Make separate harbor labels for 30 and THIRTY. Ask someone to match both to the count. On the two word rows for 30, a new reader can follow a part of THIRTY today and return to the rest another day.

Dotted capital models of THIRTY in the word practice area — Switch to THIRTY when the lesson moves from digit formation to print reading.During the harbor read, listen to the THIR at the start and the TY ending of THIRTY.

Six things to listen and look for around 30

Explain the harbor display: Group 30 by tens and ones. Point to the 30 part before describing the extras.
Manage a turn in 30: Keep one dotted 30 model visible while changing direction. Pause between 3 and 0.
Tell THIRTY from a partial clue: Read THIRTY aloud with the numeral in view. Check the letters at its right end.
Place 30 in a run: Use 30 to infer a neighbor. Show whether the harbor total rose or fell.
Recognize 30 in a new layout: Rearrange the harbor pieces. Does 30 still belong on the label?
Review one 30 attempt: Match the finished 30 against its outline. Save a movement for another visit.

Try the harbor count at home

Tie three paper bands around groups of ten ticket slips. Add a zero beside the empty loose-ticket area and let the child explain which label reports the group count and which reports the people.

Keep the harbor materials in view. Slide the 0 extras to a counted area as the learner counts up from 30. A child who wants more evidence can open one of the ten groups before rechecking 30.

Choose one 30 model to follow. Put the new mark by the harbor count and have another person read it. Invite the learner to explain the 30 label before giving a spelling cue.

Five short activities after the harbor lesson

Save the 30 record. Draw the harbor groups on a card. Move an extra piece and decide whether 30 still applies.
Guess the hidden 30 box. Read 30 and its neighbors, then cover 30. Ask a partner for the missing value.
Make a new harbor order. Add one piece to 30. Write 31 together and point to the changed digit or digits.
Split the 30 writing job. Have a child dictate THIRTY while an adult writes it. Trace 30 for a second label on the harbor display.
Check 30 in a different arrangement. Return the harbor pieces to a row. Ask a visitor to verify 30 without the first layout.

Choose a small goal for the next 30 visit

The 30 printable suits children around ages 5–8 who are ready to compare two-digit numbers. Younger children who already recognize 30 can point, speak and move counters while someone else handles the pencil. A confident writer may copy the harbor label once on a blank slip.

Use one goal during a short return visit. If a child can describe 30 as 3 tens and 0 ones, the next aim might be the shape of the right digit. If both shapes are familiar, put a little more attention on THIRTY or the place where the target sits on the strip.

Ask which 30 mark the writer would like to save. Keep the child in charge of the final selection and name a feature they can see, such as a clearer gap or a closed loop. It makes a later return to the harbor lesson feel connected to something they already accomplished.

Other ways to prepare for the 30 lesson

For a shorter writing turn than 30, start with the introductory 1–10 tracing set. To isolate the shape of 0 before the harbor activity, try a mixed set of single-digit models or the even-number dice activity as a different warm-up.

Look through family play at NAEYC for a way to adapt the harbor role-play. A family can also choose an idea from PBS KIDS for Parents and give the written THIRTY sign a job in that game.

Open and print the 30 PDF

Use the free worksheet control for the supplied 30 sheet. To get the clean member edition of THIRTY, sign in with an eligible active plan and select its premium download.

Choose US Letter portrait and preview the complete border around 30. Print one THIRTY copy at standard quality and check that the dotted guides are clear. The clean member sheet carries no website watermark or advertising.

The $8 collection card links this 30 lesson with all the other sheets through 100. A family that already has access can open sheet 30 directly inside the collection by selecting that page number.

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