Heart Collage

(Photo submitted by Shell)

Encourage the children to cut out heart shapes from
different colors and glue onto a larger heart shaped paper.

Heart Lacing

Cut a large red heart shape from poster board. Punch holes around
the perimeter using a hole punch. Let children lace yarn through holes.

Matching Hearts

Make several pairs of matching hearts. Have children find the matching pairs.

Valentine Sticker Fun

Set out different "love" themed stickers, for the children to stick onto a sheet of red, pink, or white paper.

Playdoh

Set out red, pink, and white playdoh, along with "love" themed cookie cutters.

Valentine Bead Stringing

Put out heart shaped, red, pink or other shaped/colored beads or macaroni.
 Let the children make necklaces for their "loved" ones (friends, family).

Counting Hearts

Children can count the pre cut hearts from a basket

Laced with  Love

Purchase large plastic sewing needles and sheets of plastic canvas (available at most craft stores).
  Cut an assortment of heart shapes from each sheet of canvas; then snip off any jagged edges. 
Place red, white, and pink yarn with the canvas hearts and sewing needles.  If desired, substitute
 pipe cleaners for the  yarn and needles.  Invite each child to cut a length of yarn; then help
 him/her thread the end of the yarn through the eye of the needle. Have him/her tie the other
 end of the yarn to the canvas heart.  Encourage the child to lace the yarn around
 the perimeter of the heart shape or to create a yarn design of his/her own. 

Syrup-n-dipity

Give fingers a sweet workout with this finger-lickin' good activity.  To prepare, purchase a squeeze
 bottle of strawberry syrup and a class supply of thick paper plates.  Encourage each child to
squeeze a thin layer of strawberry syrup onto a plate.  Have the children tilt their plates back and
 forth to cover the bottom of the plate with a smooth layer of syrup.  Then encourage the children
 to use their index fingers to draw hearts in the syrup.  If desired, provide candy conversation hearts
 with simple sentiments, such as "Be Mine" or "I Love You."  Invite each child to copy the words
 in their syrup.  Remind children to tilt their plates to spread the syrup into a smooth layer each
 time they wish to make new drawings or words.  When they're finished with this activity,
invite them to lick their fingers clean.  Yummy!

Valentine Sensory Idea

Place red shredded paper or pink/purple Easter grass in your sensory table and hide hearts,
 letters, etc; or place white packing pieces and hide red objects, or cupids, etc; For an added
 challenge, create a stack of numbered cards to keep near your sensory table.
  Have a child draw a card and then try to find a corresponding number of hearts.

Lace Impressions

In advance, purchase a variety of inexpensive lace with larger distinct patterns.
  Place the lace at your play dough area.  Encourage the children to roll out the play dough,
press the lace into the dough, and then remove the lace.  Look at that.... a lace design in the dough!

Valentine Mail

Let each child make a valentine for someone who lives in his or her house. 
 After placing the valentines in separate envelopes, address them, and let the
children attach postage stamps.  Then take the children on a field trip to your
local post office to mail their valentines.  Arrange ahead of time for someone to guide
 you through the post office so that the children can see what happens to letters after
 they are dropped into the mail slot.  Over the next few days, have the
 children watch for their valentines to be delivered to their homes.

Mending Broken Hearts

Cut one heart shape for every two children out of red poster board.  Draw a jagged line down the center
 of each heart and cut along the line to make two puzzle pieces.  (Make sure that the pieces of each
 heart fit together differently.)  Give each child a heart half.  Let the children search for the
matching halves of their hearts and then fit them together.  Congratulate each
 pair of children when they have successfully "mended their broken heart."

Heart Stencils

Using clean styro foam meat trays (donated from the grocery store), cut out different sized heart stencils,
 one on each tray.  You can put the cut out hearts in a stencil box for the children to use in the art center.

Heart Rubbings

Tape hearts or themed cut-outs to the tracing table, and place paper over them, for children
 to make heart rubbings. Hearts cut from plastic margarine lids work best or from cardboard.

Fish For Hearts

Make a fishing poles from 1/2 inch (1.3 cm) wooden dowel rods which can be purchased
 at a hardware or craft store.  Cut a groove around one end of the dowel rod about one
 inch (2.5 cm) from the end.  Tie a short length of yarn into the groove.  Tie a small
 magnet onto the other end.  Cut out three sizes of hearts, one each from red,
 pink, and purple paper.  Instruct child to fish for a certain size and color.

Heart Puzzle

Cut a large heart from red or pink poster board. Cut into several pieces, making a puzzle.

Strawberry Heart

Let your child use a plastic knife to spread softened cream cheese on a piece of bread or a cracker.
 Give him/her a half of a strawberry to place cut side down on top of the cheese,
 helping the child to see how the strawberry half looks like a small heart.

Pre-K Fun Theme Pages are for educational reference only! 
No copyright infringement is intended.
I do not claim any of these as my own ideas.  
They are shared from friends and fellow group members.  
Thanks for sharing all your great ideas!